diff --git a/README.md b/README.md
index bd4dd30..c5b92af 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,35 @@ final config = SPConfig(
 _controller = SourcepointController(config: config);
 ```
 
+### targeting params
+
+`SPConfig.targetingParams` are handed to the scenario in the sourcepoint
+portal, which is what decides the message a property serves. They are keyed by
+the campaign they belong to:
+
+```dart
+final config = SPConfig(
+    accountId: 22,
+    propertyId: 7639,
+    propertyName: 'tcfv2.mobile.webview',
+    pmId: '122058',
+    campaigns: [CampaignType.gdpr],
+    targetingParams: {
+        CampaignType.gdpr: {'message': 'pur'},
+    },
+);
+```
+
+### authenticated consent
+
+Pass an `authId` to load the message for a signed in user, so a consent
+decision that user has already taken elsewhere is found again instead of the
+message being shown a second time:
+
+```dart
+final consent = await _controller.loadMessage(authId: 'a-user-id');
+```
+
 in the widget tree, the consent can initially be loaded using the `SourcepointUnifiedCMPBuilder`:
 
 ```dart
diff --git a/packages/sourcepoint_unified_cmp/README.md b/packages/sourcepoint_unified_cmp/README.md
index 12bb43e..952abb0 100644
--- a/packages/sourcepoint_unified_cmp/README.md
+++ b/packages/sourcepoint_unified_cmp/README.md
@@ -37,6 +37,35 @@ final config = SPConfig(
 _controller = SourcepointController(config: config);
 ```
 
+### targeting params
+
+`SPConfig.targetingParams` are handed to the scenario in the sourcepoint
+portal, which is what decides the message a property serves. They are keyed by
+the campaign they belong to:
+
+```dart
+final config = SPConfig(
+    accountId: 22,
+    propertyId: 7639,
+    propertyName: 'tcfv2.mobile.webview',
+    pmId: '122058',
+    campaigns: [CampaignType.gdpr],
+    targetingParams: {
+        CampaignType.gdpr: {'message': 'pur'},
+    },
+);
+```
+
+### authenticated consent
+
+Pass an `authId` to load the message for a signed in user, so a consent
+decision that user has already taken elsewhere is found again instead of the
+message being shown a second time:
+
+```dart
+final consent = await _controller.loadMessage(authId: 'a-user-id');
+```
+
 in the widget tree, the consent can initially be loaded using the `SourcepointUnifiedCMPBuilder`:
 
 ```dart
diff --git a/packages/sourcepoint_unified_cmp/example_spm/ios/Podfile b/packages/sourcepoint_unified_cmp/example_spm/ios/Podfile
new file mode 100644
index 0000000..620e46e
--- /dev/null
+++ b/packages/sourcepoint_unified_cmp/example_spm/ios/Podfile
@@ -0,0 +1,43 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '13.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end
diff --git a/packages/sourcepoint_unified_cmp/lib/src/controller.dart b/packages/sourcepoint_unified_cmp/lib/src/controller.dart
index bcd6390..e2ed9d3 100644
--- a/packages/sourcepoint_unified_cmp/lib/src/controller.dart
+++ b/packages/sourcepoint_unified_cmp/lib/src/controller.dart
@@ -41,10 +41,14 @@ class SourcepointController extends ConsentChangeNotifier
 
   /// Loading the First Layer Message
   /// and returns the initial consent status
+  ///
+  /// Pass [authId] to load the message for a signed-in user, so a consent
+  /// decision that user already took elsewhere is reused instead of the
+  /// message being shown again.
   @override
-  Future<SPConsent> loadMessage() async {
+  Future<SPConsent> loadMessage({String? authId}) async {
     debugPrint('loadMessage');
-    return _platform.loadMessage(config);
+    return _platform.loadMessage(config, authId: authId);
   }
 
   /// Programmatically grant custom GDPR consent to the supplied [vendors],
diff --git a/packages/sourcepoint_unified_cmp/test/sourcepoint_unified_cmp_test.dart b/packages/sourcepoint_unified_cmp/test/sourcepoint_unified_cmp_test.dart
index 100df06..1b4291c 100644
--- a/packages/sourcepoint_unified_cmp/test/sourcepoint_unified_cmp_test.dart
+++ b/packages/sourcepoint_unified_cmp/test/sourcepoint_unified_cmp_test.dart
@@ -31,12 +31,31 @@ void main() {
       pmId: '122058',
       campaigns: [CampaignType.gdpr],
     );
-    when(methodChannel.loadMessage(any)).thenAnswer((_) async => SPConsent());
+    when(
+      methodChannel.loadMessage(any, authId: anyNamed('authId')),
+    ).thenAnswer((_) async => SPConsent());
     final controller = SourcepointController(config: config);
     final r = await controller.loadMessage();
     expect(r, isNotNull);
   });
 
+  test('loadMessage passes the authId through to the platform', () async {
+    final config = SPConfig(
+      accountId: 22,
+      propertyId: 7639,
+      propertyName: 'tcfv2.mobile.webview',
+      pmId: '122058',
+      campaigns: [CampaignType.gdpr],
+    );
+    when(
+      methodChannel.loadMessage(any, authId: anyNamed('authId')),
+    ).thenAnswer((_) async => SPConsent());
+    await SourcepointController(
+      config: config,
+    ).loadMessage(authId: 'user-42');
+    verify(methodChannel.loadMessage(config, authId: 'user-42')).called(1);
+  });
+
   group('SourcepointController', () {
     test('setEventDelegate registers the delegate with the platform', () {
       final config = SPConfig(
@@ -186,7 +205,9 @@ void main() {
         pmId: '122058',
         campaigns: [CampaignType.gdpr],
       );
-      when(methodChannel.loadMessage(any)).thenAnswer((_) async => consent);
+      when(
+        methodChannel.loadMessage(any, authId: anyNamed('authId')),
+      ).thenAnswer((_) async => consent);
 
       final controller = SourcepointController(config: config);
 
@@ -221,7 +242,9 @@ void main() {
         pmId: '122058',
         campaigns: [CampaignType.gdpr],
       );
-      when(methodChannel.loadMessage(any)).thenAnswer((_) async => consent);
+      when(
+        methodChannel.loadMessage(any, authId: anyNamed('authId')),
+      ).thenAnswer((_) async => consent);
 
       SPConsent? receivedConsent;
       final controller = SourcepointController(config: config);
diff --git a/packages/sourcepoint_unified_cmp/test/sourcepoint_unified_cmp_test.mocks.dart b/packages/sourcepoint_unified_cmp/test/sourcepoint_unified_cmp_test.mocks.dart
index e792441..b3e888b 100644
--- a/packages/sourcepoint_unified_cmp/test/sourcepoint_unified_cmp_test.mocks.dart
+++ b/packages/sourcepoint_unified_cmp/test/sourcepoint_unified_cmp_test.mocks.dart
@@ -3,6 +3,7 @@
 // Do not manually edit this file.
 
 // ignore_for_file: no_leading_underscores_for_library_prefixes
+
 import 'dart:async' as _i5;
 
 import 'package:flutter/services.dart' as _i2;
@@ -62,14 +63,23 @@ class MockMethodChannelSourcepointUnifiedCmp extends _i1.Mock
           as _i2.MethodChannel);
 
   @override
-  _i5.Future<_i3.SPConsent> loadMessage(_i3.SPConfig? config) =>
+  _i5.Future<_i3.SPConsent> loadMessage(
+    _i3.SPConfig? config, {
+    String? authId,
+  }) =>
       (super.noSuchMethod(
-            Invocation.method(#loadMessage, [config]),
+            Invocation.method(#loadMessage, [config], {#authId: authId}),
             returnValue: _i5.Future<_i3.SPConsent>.value(
-              _FakeSPConsent_1(this, Invocation.method(#loadMessage, [config])),
+              _FakeSPConsent_1(
+                this,
+                Invocation.method(#loadMessage, [config], {#authId: authId}),
+              ),
             ),
             returnValueForMissingStub: _i5.Future<_i3.SPConsent>.value(
-              _FakeSPConsent_1(this, Invocation.method(#loadMessage, [config])),
+              _FakeSPConsent_1(
+                this,
+                Invocation.method(#loadMessage, [config], {#authId: authId}),
+              ),
             ),
           )
           as _i5.Future<_i3.SPConsent>);
diff --git a/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcePointUnifiedCmpData.kt b/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcePointUnifiedCmpData.kt
index 887c0f9..c608b8a 100644
--- a/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcePointUnifiedCmpData.kt
+++ b/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcePointUnifiedCmpData.kt
@@ -25,6 +25,7 @@ import com.sourcepoint.cmplibrary.model.exposed.GDPRPurposeGrants
 import com.sourcepoint.cmplibrary.model.exposed.MessageType
 import com.sourcepoint.cmplibrary.model.exposed.SPConsents
 import com.sourcepoint.cmplibrary.model.exposed.SPGDPRConsent
+import com.sourcepoint.cmplibrary.model.exposed.TargetingParam
 import com.sourcepoint.cmplibrary.model.exposed.toWebViewConsentsJsonObject
 
 fun GDPRPurposeGrants.toHostAPIPurposeGrants() = HostAPIGDPRPurposeGrants(
@@ -136,3 +137,10 @@ fun HostAPIMessageType.toMessageType() = when (this) {
     HostAPIMessageType.OTT -> MessageType.OTT
     HostAPIMessageType.LEGACY_OTT -> MessageType.LEGACY_OTT
 }
+
+/**
+ * Sourcepoint takes targeting params as a list of key/value pairs, the
+ * flutter side sends them as a map.
+ */
+fun Map<String, String>.toTargetingParams(): List<TargetingParam> =
+    map { (key, value) -> TargetingParam(key, value) }
diff --git a/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcepointUnifiedCmp.g.kt b/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcepointUnifiedCmp.g.kt
index afc8cbe..b2b08fd 100644
--- a/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcepointUnifiedCmp.g.kt
+++ b/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcepointUnifiedCmp.g.kt
@@ -889,7 +889,7 @@ private open class SourcepointUnifiedCmpPigeonCodec : StandardMessageCodec() {
 
 /** Generated interface from Pigeon that represents a handler of messages from Flutter. */
 interface SourcepointUnifiedCmpHostApi {
-  fun loadMessage(accountId: Long, propertyId: Long, propertyName: String, pmId: String, messageLanguage: HostAPIMessageLanguage, campaignsEnv: HostAPICampaignsEnv, messageTimeout: Long, runGDPRCampaign: Boolean, runCCPACampaign: Boolean, runUSNATCampaign: Boolean, callback: (Result<HostAPISPConsent>) -> Unit)
+  fun loadMessage(accountId: Long, propertyId: Long, propertyName: String, pmId: String, messageLanguage: HostAPIMessageLanguage, campaignsEnv: HostAPICampaignsEnv, messageTimeout: Long, runGDPRCampaign: Boolean, runCCPACampaign: Boolean, runUSNATCampaign: Boolean, gdprTargetingParams: Map<String, String>, ccpaTargetingParams: Map<String, String>, usnatTargetingParams: Map<String, String>, authId: String?, callback: (Result<HostAPISPConsent>) -> Unit)
   fun loadPrivacyManager(pmId: String, pmTab: HostAPIPMTab, campaignType: HostAPICampaignType, messageType: HostAPIMessageType, callback: (Result<Unit>) -> Unit)
   fun customConsentGDPR(vendors: List<String>, categories: List<String>, legIntCategories: List<String>, callback: (Result<HostAPISPConsent>) -> Unit)
   fun deleteCustomConsentGDPR(vendors: List<String>, categories: List<String>, legIntCategories: List<String>, callback: (Result<HostAPISPConsent>) -> Unit)
@@ -918,7 +918,11 @@ interface SourcepointUnifiedCmpHostApi {
             val runGDPRCampaignArg = args[7] as Boolean
             val runCCPACampaignArg = args[8] as Boolean
             val runUSNATCampaignArg = args[9] as Boolean
-            api.loadMessage(accountIdArg, propertyIdArg, propertyNameArg, pmIdArg, messageLanguageArg, campaignsEnvArg, messageTimeoutArg, runGDPRCampaignArg, runCCPACampaignArg, runUSNATCampaignArg) { result: Result<HostAPISPConsent> ->
+            val gdprTargetingParamsArg = args[10] as Map<String, String>
+            val ccpaTargetingParamsArg = args[11] as Map<String, String>
+            val usnatTargetingParamsArg = args[12] as Map<String, String>
+            val authIdArg = args[13] as String?
+            api.loadMessage(accountIdArg, propertyIdArg, propertyNameArg, pmIdArg, messageLanguageArg, campaignsEnvArg, messageTimeoutArg, runGDPRCampaignArg, runCCPACampaignArg, runUSNATCampaignArg, gdprTargetingParamsArg, ccpaTargetingParamsArg, usnatTargetingParamsArg, authIdArg) { result: Result<HostAPISPConsent> ->
               val error = result.exceptionOrNull()
               if (error != null) {
                 reply.reply(SourcepointUnifiedCmpPigeonUtils.wrapError(error))
diff --git a/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcepointUnifiedCmpPlugin.kt b/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcepointUnifiedCmpPlugin.kt
index f7762c9..30b38fb 100644
--- a/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcepointUnifiedCmpPlugin.kt
+++ b/packages/sourcepoint_unified_cmp_android/android/src/main/kotlin/de/thekorn/sourcepoint/unified/cmp/SourcepointUnifiedCmpPlugin.kt
@@ -221,6 +221,10 @@ class SourcepointUnifiedCmpPlugin :
         runGDPRCampaign: Boolean,
         runCCPACampaign: Boolean,
         runUSNATCampaign: Boolean,
+        gdprTargetingParams: Map<String, String>,
+        ccpaTargetingParams: Map<String, String>,
+        usnatTargetingParams: Map<String, String>,
+        authId: String?,
         callback: (Result<HostAPISPConsent>) -> Unit
     ) {
         Log.d("SourcepointUnifiedCmp", "loadMessage")
@@ -231,9 +235,27 @@ class SourcepointUnifiedCmpPlugin :
             .addMessageLanguage(messageLanguage.toMessageLanguage())
             .addCampaignsEnv(campaignsEnv.toCampaignsEnv())
             .addMessageTimeout(messageTimeout)
-        if (runGDPRCampaign) cmpConfig.addCampaign(CampaignType.GDPR)
-        if (runCCPACampaign) cmpConfig.addCampaign(CampaignType.CCPA)
-        if (runUSNATCampaign) cmpConfig.addCampaign(CampaignType.USNAT)
+        if (runGDPRCampaign) {
+            cmpConfig.addCampaign(
+                CampaignType.GDPR,
+                gdprTargetingParams.toTargetingParams(),
+                null
+            )
+        }
+        if (runCCPACampaign) {
+            cmpConfig.addCampaign(
+                CampaignType.CCPA,
+                ccpaTargetingParams.toTargetingParams(),
+                null
+            )
+        }
+        if (runUSNATCampaign) {
+            cmpConfig.addCampaign(
+                CampaignType.USNAT,
+                usnatTargetingParams.toTargetingParams(),
+                null
+            )
+        }
 
         Log.d("SourcepointUnifiedCmp", "loadMessage")
         val spClient = LocalClient()
@@ -244,7 +266,14 @@ class SourcepointUnifiedCmpPlugin :
                 activity = this.activity,
                 spClient = spClient
             )
-        spConsentLib!!.loadMessage()
+        // `loadMessage(authId)` and `loadMessage(authId, pubData, cmpViewId)`
+        // are both applicable to a single nullable String, so the no-arg
+        // overload keeps the call unambiguous when there is no authId.
+        if (authId == null) {
+            spConsentLib!!.loadMessage()
+        } else {
+            spConsentLib!!.loadMessage(authId = authId, pubData = null, cmpViewId = null)
+        }
         spClient.isInitialized.invokeOnCompletion {
             if (it != null) {
                 Log.d("SourcepointUnifiedCmp", "initial loadMessage error thrown: $it")
diff --git a/packages/sourcepoint_unified_cmp_android/lib/sourcepoint_unified_cmp_android.dart b/packages/sourcepoint_unified_cmp_android/lib/sourcepoint_unified_cmp_android.dart
index 70139cc..05318db 100644
--- a/packages/sourcepoint_unified_cmp_android/lib/sourcepoint_unified_cmp_android.dart
+++ b/packages/sourcepoint_unified_cmp_android/lib/sourcepoint_unified_cmp_android.dart
@@ -102,6 +102,7 @@ extension on messages.HostAPIConsentAction {
       actionType: actionType.toActionType(),
       pubData: jsonDecode(pubData),
       campaignType: campaignType.toCampaignType(),
+      customActionId: customActionId,
     );
   }
 }
@@ -269,7 +270,7 @@ class SourcepointUnifiedCmpAndroid extends SourcepointUnifiedCmpPlatform {
   }
 
   @override
-  Future<SPConsent> loadMessage(SPConfig config) async {
+  Future<SPConsent> loadMessage(SPConfig config, {String? authId}) async {
     assert(config.campaigns.isNotEmpty, 'campaigns cannot be empty');
     final hostConsent = await _api.loadMessage(
       accountId: config.accountId,
@@ -282,6 +283,13 @@ class SourcepointUnifiedCmpAndroid extends SourcepointUnifiedCmpPlatform {
       runCCPACampaign: config.campaigns.contains(CampaignType.ccpa),
       runGDPRCampaign: config.campaigns.contains(CampaignType.gdpr),
       runUSNATCampaign: config.campaigns.contains(CampaignType.usnat),
+      gdprTargetingParams:
+          config.targetingParams[CampaignType.gdpr] ?? const {},
+      ccpaTargetingParams:
+          config.targetingParams[CampaignType.ccpa] ?? const {},
+      usnatTargetingParams:
+          config.targetingParams[CampaignType.usnat] ?? const {},
+      authId: authId,
     );
     final consent = hostConsent.toSPConsent();
     return consent;
diff --git a/packages/sourcepoint_unified_cmp_android/lib/src/messages.g.dart b/packages/sourcepoint_unified_cmp_android/lib/src/messages.g.dart
index b78f96d..ead97bd 100644
--- a/packages/sourcepoint_unified_cmp_android/lib/src/messages.g.dart
+++ b/packages/sourcepoint_unified_cmp_android/lib/src/messages.g.dart
@@ -873,6 +873,10 @@ class SourcepointUnifiedCmpHostApi {
     required bool runGDPRCampaign,
     required bool runCCPACampaign,
     required bool runUSNATCampaign,
+    required Map<String, String> gdprTargetingParams,
+    required Map<String, String> ccpaTargetingParams,
+    required Map<String, String> usnatTargetingParams,
+    String? authId,
   }) async {
     final pigeonVar_channelName =
         'dev.flutter.pigeon.sourcepoint_unified_cmp_android.SourcepointUnifiedCmpHostApi.loadMessage$pigeonVar_messageChannelSuffix';
@@ -881,20 +885,23 @@ class SourcepointUnifiedCmpHostApi {
       pigeonChannelCodec,
       binaryMessenger: pigeonVar_binaryMessenger,
     );
-    final Future<Object?> pigeonVar_sendFuture = pigeonVar_channel.send(
-      <Object?>[
-        accountId,
-        propertyId,
-        propertyName,
-        pmId,
-        messageLanguage,
-        campaignsEnv,
-        messageTimeout,
-        runGDPRCampaign,
-        runCCPACampaign,
-        runUSNATCampaign,
-      ],
-    );
+    final Future<Object?> pigeonVar_sendFuture = pigeonVar_channel
+        .send(<Object?>[
+          accountId,
+          propertyId,
+          propertyName,
+          pmId,
+          messageLanguage,
+          campaignsEnv,
+          messageTimeout,
+          runGDPRCampaign,
+          runCCPACampaign,
+          runUSNATCampaign,
+          gdprTargetingParams,
+          ccpaTargetingParams,
+          usnatTargetingParams,
+          authId,
+        ]);
     final pigeonVar_replyList = await pigeonVar_sendFuture as List<Object?>?;
 
     final Object? pigeonVar_replyValue = _extractReplyValueOrThrow(
diff --git a/packages/sourcepoint_unified_cmp_android/pigeons/messages.dart b/packages/sourcepoint_unified_cmp_android/pigeons/messages.dart
index 76e50d4..9568f89 100644
--- a/packages/sourcepoint_unified_cmp_android/pigeons/messages.dart
+++ b/packages/sourcepoint_unified_cmp_android/pigeons/messages.dart
@@ -169,6 +169,10 @@ abstract class SourcepointUnifiedCmpHostApi {
     required bool runGDPRCampaign,
     required bool runCCPACampaign,
     required bool runUSNATCampaign,
+    required Map<String, String> gdprTargetingParams,
+    required Map<String, String> ccpaTargetingParams,
+    required Map<String, String> usnatTargetingParams,
+    String? authId,
   });
 
   @async
diff --git a/packages/sourcepoint_unified_cmp_android/test/sourcepoint_unified_cmp_android_test.dart b/packages/sourcepoint_unified_cmp_android/test/sourcepoint_unified_cmp_android_test.dart
index 7282cd8..54d9e07 100644
--- a/packages/sourcepoint_unified_cmp_android/test/sourcepoint_unified_cmp_android_test.dart
+++ b/packages/sourcepoint_unified_cmp_android/test/sourcepoint_unified_cmp_android_test.dart
@@ -1,7 +1,11 @@
+import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mockito/annotations.dart';
 import 'package:mockito/mockito.dart';
-import 'package:sourcepoint_unified_cmp_android/src/messages.g.dart';
+import 'package:sourcepoint_unified_cmp_android/sourcepoint_unified_cmp_android.dart';
+import 'package:sourcepoint_unified_cmp_android/src/messages.g.dart'
+    hide SPConfig;
+import 'package:sourcepoint_unified_cmp_platform_interface/sourcepoint_unified_cmp_platform_interface.dart';
 
 @GenerateNiceMocks([MockSpec<SourcepointUnifiedCmpHostApi>()])
 import 'sourcepoint_unified_cmp_android_test.mocks.dart';
@@ -27,6 +31,9 @@ void main() {
         runGDPRCampaign: true,
         runCCPACampaign: false,
         runUSNATCampaign: false,
+        gdprTargetingParams: {},
+        ccpaTargetingParams: {},
+        usnatTargetingParams: {},
       ),
     ).thenAnswer((_) async => HostAPISPConsent());
     final consent = await api.loadMessage(
@@ -40,6 +47,9 @@ void main() {
       runGDPRCampaign: true,
       runCCPACampaign: false,
       runUSNATCampaign: false,
+      gdprTargetingParams: {},
+      ccpaTargetingParams: {},
+      usnatTargetingParams: {},
     );
     expect(consent, isNotNull);
   });
@@ -75,4 +85,59 @@ void main() {
     );
     expect(consent, isNotNull);
   });
+
+  test('loadMessage sends each campaign its own targeting params', () async {
+    List<Object?>? sent;
+    const channel = BasicMessageChannel<Object?>(
+      'dev.flutter.pigeon.sourcepoint_unified_cmp_android'
+      '.SourcepointUnifiedCmpHostApi.loadMessage',
+      SourcepointUnifiedCmpHostApi.pigeonChannelCodec,
+    );
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockDecodedMessageHandler<Object?>(channel, (message) async {
+          sent = message! as List<Object?>;
+          return <Object?>[HostAPISPConsent()];
+        });
+    addTearDown(
+      () => TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+          .setMockDecodedMessageHandler<Object?>(channel, null),
+    );
+
+    await SourcepointUnifiedCmpAndroid().loadMessage(
+      SPConfig(
+        accountId: 22,
+        propertyId: 7639,
+        propertyName: 'tcfv2.mobile.webview',
+        pmId: '122058',
+        campaigns: [CampaignType.gdpr],
+        targetingParams: {
+          CampaignType.gdpr: {'message': 'pur', 'legal': 'no'},
+        },
+      ),
+      authId: 'user-42',
+    );
+
+    expect(sent, contains(equals({'message': 'pur', 'legal': 'no'})));
+    expect(sent, contains('user-42'));
+  });
+
+  test('onAction reports the id of the custom button that was tapped', () {
+    ConsentAction? received;
+    SourcepointEventHandler(
+      delegate: _RecordingDelegate((action) => received = action),
+    ).onAction(
+      HostAPIConsentAction(
+        actionType: HostAPIActionType.custom,
+        pubData: '{}',
+        campaignType: HostAPICampaignType.gdpr,
+        customActionId: 'pur-subscribe',
+      ),
+    );
+    expect(received?.customActionId, 'pur-subscribe');
+  });
+}
+
+class _RecordingDelegate extends SourcepointEventDelegatePlatform {
+  _RecordingDelegate(void Function(ConsentAction) onAction)
+    : super(onAction: onAction);
 }
diff --git a/packages/sourcepoint_unified_cmp_android/test/sourcepoint_unified_cmp_android_test.mocks.dart b/packages/sourcepoint_unified_cmp_android/test/sourcepoint_unified_cmp_android_test.mocks.dart
index 0263ccb..5bbc75f 100644
--- a/packages/sourcepoint_unified_cmp_android/test/sourcepoint_unified_cmp_android_test.mocks.dart
+++ b/packages/sourcepoint_unified_cmp_android/test/sourcepoint_unified_cmp_android_test.mocks.dart
@@ -3,6 +3,7 @@
 // Do not manually edit this file.
 
 // ignore_for_file: no_leading_underscores_for_library_prefixes
+
 import 'dart:async' as _i4;
 
 import 'package:mockito/mockito.dart' as _i1;
@@ -62,6 +63,10 @@ class MockSourcepointUnifiedCmpHostApi extends _i1.Mock
     required bool? runGDPRCampaign,
     required bool? runCCPACampaign,
     required bool? runUSNATCampaign,
+    required Map<String, String>? gdprTargetingParams,
+    required Map<String, String>? ccpaTargetingParams,
+    required Map<String, String>? usnatTargetingParams,
+    String? authId,
   }) =>
       (super.noSuchMethod(
             Invocation.method(#loadMessage, [], {
@@ -75,6 +80,10 @@ class MockSourcepointUnifiedCmpHostApi extends _i1.Mock
               #runGDPRCampaign: runGDPRCampaign,
               #runCCPACampaign: runCCPACampaign,
               #runUSNATCampaign: runUSNATCampaign,
+              #gdprTargetingParams: gdprTargetingParams,
+              #ccpaTargetingParams: ccpaTargetingParams,
+              #usnatTargetingParams: usnatTargetingParams,
+              #authId: authId,
             }),
             returnValue: _i4.Future<_i2.HostAPISPConsent>.value(
               _FakeHostAPISPConsent_0(
@@ -90,6 +99,10 @@ class MockSourcepointUnifiedCmpHostApi extends _i1.Mock
                   #runGDPRCampaign: runGDPRCampaign,
                   #runCCPACampaign: runCCPACampaign,
                   #runUSNATCampaign: runUSNATCampaign,
+                  #gdprTargetingParams: gdprTargetingParams,
+                  #ccpaTargetingParams: ccpaTargetingParams,
+                  #usnatTargetingParams: usnatTargetingParams,
+                  #authId: authId,
                 }),
               ),
             ),
@@ -107,6 +120,10 @@ class MockSourcepointUnifiedCmpHostApi extends _i1.Mock
                   #runGDPRCampaign: runGDPRCampaign,
                   #runCCPACampaign: runCCPACampaign,
                   #runUSNATCampaign: runUSNATCampaign,
+                  #gdprTargetingParams: gdprTargetingParams,
+                  #ccpaTargetingParams: ccpaTargetingParams,
+                  #usnatTargetingParams: usnatTargetingParams,
+                  #authId: authId,
                 }),
               ),
             ),
diff --git a/packages/sourcepoint_unified_cmp_ios/ios/sourcepoint_unified_cmp_ios/Sources/sourcepoint_unified_cmp_ios/SourcepointUnifiedCmpPlugin.swift b/packages/sourcepoint_unified_cmp_ios/ios/sourcepoint_unified_cmp_ios/Sources/sourcepoint_unified_cmp_ios/SourcepointUnifiedCmpPlugin.swift
index e6671d2..9a7ba06 100644
--- a/packages/sourcepoint_unified_cmp_ios/ios/sourcepoint_unified_cmp_ios/Sources/sourcepoint_unified_cmp_ios/SourcepointUnifiedCmpPlugin.swift
+++ b/packages/sourcepoint_unified_cmp_ios/ios/sourcepoint_unified_cmp_ios/Sources/sourcepoint_unified_cmp_ios/SourcepointUnifiedCmpPlugin.swift
@@ -15,21 +15,23 @@ public class SourcepointUnifiedCmpPlugin: UIViewController, FlutterPlugin,
   func loadMessage(accountId: Int64, propertyId: Int64, propertyName: String, pmId _: String,
                    messageLanguage: HostAPIMessageLanguage, campaignsEnv: HostAPICampaignsEnv,
                    messageTimeout: Int64, runGDPRCampaign: Bool, runCCPACampaign: Bool,
+                   gdprTargetingParams: [String: String],
+                   ccpaTargetingParams: [String: String], authId: String?,
                    completion: @escaping (Result<HostAPISPConsent, Error>) -> Void) {
     consentManager = SPConsentManager(
       accountId: Int(accountId),
       propertyId: Int(propertyId),
       propertyName: try! SPPropertyName(propertyName),
       campaigns: SPCampaigns(
-        gdpr: runGDPRCampaign ? SPCampaign() : nil,
-        ccpa: runCCPACampaign ? SPCampaign() : nil,
+        gdpr: runGDPRCampaign ? SPCampaign(targetingParams: gdprTargetingParams) : nil,
+        ccpa: runCCPACampaign ? SPCampaign(targetingParams: ccpaTargetingParams) : nil,
         environment: campaignsEnv.toSPCampaignEnv()
       ),
       delegate: self
     )
     consentManager.messageLanguage = messageLanguage.toSPMessageLanguage()
     consentManager.messageTimeoutInSeconds = Double(messageTimeout) / 1000
-    consentManager.loadMessage()
+    consentManager.loadMessage(forAuthId: authId)
     isInitialized.setCompletionHandler { [completion] result in
       completion(.success(result.toHostAPISPConsent()))
     }
diff --git a/packages/sourcepoint_unified_cmp_ios/ios/sourcepoint_unified_cmp_ios/Sources/sourcepoint_unified_cmp_ios/pigeons/SourcepointUnifiedCmp.g.swift b/packages/sourcepoint_unified_cmp_ios/ios/sourcepoint_unified_cmp_ios/Sources/sourcepoint_unified_cmp_ios/pigeons/SourcepointUnifiedCmp.g.swift
index 5dcd1d9..72cb526 100644
--- a/packages/sourcepoint_unified_cmp_ios/ios/sourcepoint_unified_cmp_ios/Sources/sourcepoint_unified_cmp_ios/pigeons/SourcepointUnifiedCmp.g.swift
+++ b/packages/sourcepoint_unified_cmp_ios/ios/sourcepoint_unified_cmp_ios/Sources/sourcepoint_unified_cmp_ios/pigeons/SourcepointUnifiedCmp.g.swift
@@ -67,7 +67,9 @@ private func isNullish(_ value: Any?) -> Bool {
 }
 
 private func nilOrValue<T>(_ value: Any?) -> T? {
-  if value is NSNull { return nil }
+  if value is NSNull {
+    return nil
+  }
   return value as! T?
 }
 
@@ -132,7 +134,9 @@ func deepEqualsSourcepointUnifiedCmp(_ lhs: Any?, _ rhs: Any?) -> Bool {
           }
         }
       }
-      if !found { return false }
+      if !found {
+        return false
+      }
     }
     return true
 
@@ -910,7 +914,8 @@ protocol SourcepointUnifiedCmpHostApi {
   func loadMessage(accountId: Int64, propertyId: Int64, propertyName: String, pmId: String,
                    messageLanguage: HostAPIMessageLanguage, campaignsEnv: HostAPICampaignsEnv,
                    messageTimeout: Int64, runGDPRCampaign: Bool, runCCPACampaign: Bool,
-                   completion: @escaping (Result<HostAPISPConsent, Error>) -> Void)
+                   gdprTargetingParams: [String: String], ccpaTargetingParams: [String: String],
+                   authId: String?, completion: @escaping (Result<HostAPISPConsent, Error>) -> Void)
   func loadPrivacyManager(pmId: String, pmTab: HostAPIPMTab, campaignType: HostAPICampaignType,
                           messageType: HostAPIMessageType,
                           completion: @escaping (Result<Void, Error>) -> Void)
@@ -948,6 +953,9 @@ class SourcepointUnifiedCmpHostApiSetup {
         let messageTimeoutArg = args[6] as! Int64
         let runGDPRCampaignArg = args[7] as! Bool
         let runCCPACampaignArg = args[8] as! Bool
+        let gdprTargetingParamsArg = args[9] as! [String: String]
+        let ccpaTargetingParamsArg = args[10] as! [String: String]
+        let authIdArg: String? = nilOrValue(args[11])
         api.loadMessage(
           accountId: accountIdArg,
           propertyId: propertyIdArg,
@@ -957,7 +965,10 @@ class SourcepointUnifiedCmpHostApiSetup {
           campaignsEnv: campaignsEnvArg,
           messageTimeout: messageTimeoutArg,
           runGDPRCampaign: runGDPRCampaignArg,
-          runCCPACampaign: runCCPACampaignArg
+          runCCPACampaign: runCCPACampaignArg,
+          gdprTargetingParams: gdprTargetingParamsArg,
+          ccpaTargetingParams: ccpaTargetingParamsArg,
+          authId: authIdArg
         ) { result in
           switch result {
           case let .success(res):
diff --git a/packages/sourcepoint_unified_cmp_ios/lib/sourcepoint_unified_cmp_ios.dart b/packages/sourcepoint_unified_cmp_ios/lib/sourcepoint_unified_cmp_ios.dart
index 7d84007..deb9316 100644
--- a/packages/sourcepoint_unified_cmp_ios/lib/sourcepoint_unified_cmp_ios.dart
+++ b/packages/sourcepoint_unified_cmp_ios/lib/sourcepoint_unified_cmp_ios.dart
@@ -102,6 +102,7 @@ extension on messages.HostAPIConsentAction {
       actionType: actionType.toActionType(),
       pubData: jsonDecode(pubData),
       campaignType: campaignType.toCampaignType(),
+      customActionId: customActionId,
     );
   }
 }
@@ -267,7 +268,7 @@ class SourcepointUnifiedCmpIOS extends SourcepointUnifiedCmpPlatform {
   }
 
   @override
-  Future<SPConsent> loadMessage(SPConfig config) async {
+  Future<SPConsent> loadMessage(SPConfig config, {String? authId}) async {
     assert(config.campaigns.isNotEmpty, 'campaigns cannot be empty');
     final hostConsent = await _api.loadMessage(
       accountId: config.accountId,
@@ -279,6 +280,11 @@ class SourcepointUnifiedCmpIOS extends SourcepointUnifiedCmpPlatform {
       messageTimeout: config.messageTimeout,
       runCCPACampaign: config.campaigns.contains(CampaignType.ccpa),
       runGDPRCampaign: config.campaigns.contains(CampaignType.gdpr),
+      gdprTargetingParams:
+          config.targetingParams[CampaignType.gdpr] ?? const {},
+      ccpaTargetingParams:
+          config.targetingParams[CampaignType.ccpa] ?? const {},
+      authId: authId,
     );
     final consent = hostConsent.toSPConsent();
     return consent;
diff --git a/packages/sourcepoint_unified_cmp_ios/lib/src/messages.g.dart b/packages/sourcepoint_unified_cmp_ios/lib/src/messages.g.dart
index 1208137..af084f7 100644
--- a/packages/sourcepoint_unified_cmp_ios/lib/src/messages.g.dart
+++ b/packages/sourcepoint_unified_cmp_ios/lib/src/messages.g.dart
@@ -819,6 +819,9 @@ class SourcepointUnifiedCmpHostApi {
     required int messageTimeout,
     required bool runGDPRCampaign,
     required bool runCCPACampaign,
+    required Map<String, String> gdprTargetingParams,
+    required Map<String, String> ccpaTargetingParams,
+    String? authId,
   }) async {
     final pigeonVar_channelName =
         'dev.flutter.pigeon.sourcepoint_unified_cmp_ios.SourcepointUnifiedCmpHostApi.loadMessage$pigeonVar_messageChannelSuffix';
@@ -838,6 +841,9 @@ class SourcepointUnifiedCmpHostApi {
           messageTimeout,
           runGDPRCampaign,
           runCCPACampaign,
+          gdprTargetingParams,
+          ccpaTargetingParams,
+          authId,
         ]);
     final pigeonVar_replyList = await pigeonVar_sendFuture as List<Object?>?;
 
diff --git a/packages/sourcepoint_unified_cmp_ios/pigeons/messages.dart b/packages/sourcepoint_unified_cmp_ios/pigeons/messages.dart
index 64bef9c..20f0064 100644
--- a/packages/sourcepoint_unified_cmp_ios/pigeons/messages.dart
+++ b/packages/sourcepoint_unified_cmp_ios/pigeons/messages.dart
@@ -181,6 +181,9 @@ abstract class SourcepointUnifiedCmpHostApi {
     required int messageTimeout,
     required bool runGDPRCampaign,
     required bool runCCPACampaign,
+    required Map<String, String> gdprTargetingParams,
+    required Map<String, String> ccpaTargetingParams,
+    String? authId,
   });
 
   @async
diff --git a/packages/sourcepoint_unified_cmp_ios/test/sourcepoint_unified_cmp_ios_test.dart b/packages/sourcepoint_unified_cmp_ios/test/sourcepoint_unified_cmp_ios_test.dart
index b48993e..2738bc4 100644
--- a/packages/sourcepoint_unified_cmp_ios/test/sourcepoint_unified_cmp_ios_test.dart
+++ b/packages/sourcepoint_unified_cmp_ios/test/sourcepoint_unified_cmp_ios_test.dart
@@ -1,7 +1,10 @@
+import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mockito/annotations.dart';
 import 'package:mockito/mockito.dart';
-import 'package:sourcepoint_unified_cmp_ios/src/messages.g.dart';
+import 'package:sourcepoint_unified_cmp_ios/sourcepoint_unified_cmp_ios.dart';
+import 'package:sourcepoint_unified_cmp_ios/src/messages.g.dart' hide SPConfig;
+import 'package:sourcepoint_unified_cmp_platform_interface/sourcepoint_unified_cmp_platform_interface.dart';
 
 @GenerateNiceMocks([MockSpec<SourcepointUnifiedCmpHostApi>()])
 import 'sourcepoint_unified_cmp_ios_test.mocks.dart';
@@ -26,6 +29,8 @@ void main() {
         messageTimeout: 10000,
         runGDPRCampaign: true,
         runCCPACampaign: false,
+        gdprTargetingParams: {},
+        ccpaTargetingParams: {},
       ),
     ).thenAnswer((_) async => HostAPISPConsent());
     final consent = await api.loadMessage(
@@ -38,6 +43,8 @@ void main() {
       messageTimeout: 10000,
       runGDPRCampaign: true,
       runCCPACampaign: false,
+      gdprTargetingParams: {},
+      ccpaTargetingParams: {},
     );
     expect(consent, isNotNull);
   });
@@ -73,4 +80,59 @@ void main() {
     );
     expect(consent, isNotNull);
   });
+
+  test('loadMessage sends each campaign its own targeting params', () async {
+    List<Object?>? sent;
+    const channel = BasicMessageChannel<Object?>(
+      'dev.flutter.pigeon.sourcepoint_unified_cmp_ios'
+      '.SourcepointUnifiedCmpHostApi.loadMessage',
+      SourcepointUnifiedCmpHostApi.pigeonChannelCodec,
+    );
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockDecodedMessageHandler<Object?>(channel, (message) async {
+          sent = message! as List<Object?>;
+          return <Object?>[HostAPISPConsent()];
+        });
+    addTearDown(
+      () => TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+          .setMockDecodedMessageHandler<Object?>(channel, null),
+    );
+
+    await SourcepointUnifiedCmpIOS().loadMessage(
+      SPConfig(
+        accountId: 22,
+        propertyId: 7639,
+        propertyName: 'tcfv2.mobile.webview',
+        pmId: '122058',
+        campaigns: [CampaignType.gdpr],
+        targetingParams: {
+          CampaignType.gdpr: {'message': 'pur', 'legal': 'no'},
+        },
+      ),
+      authId: 'user-42',
+    );
+
+    expect(sent, contains(equals({'message': 'pur', 'legal': 'no'})));
+    expect(sent, contains('user-42'));
+  });
+
+  test('onAction reports the id of the custom button that was tapped', () {
+    ConsentAction? received;
+    SourcepointEventHandler(
+      delegate: _RecordingDelegate((action) => received = action),
+    ).onAction(
+      HostAPIConsentAction(
+        actionType: HostAPIActionType.custom,
+        pubData: '{}',
+        campaignType: HostAPICampaignType.gdpr,
+        customActionId: 'pur-subscribe',
+      ),
+    );
+    expect(received?.customActionId, 'pur-subscribe');
+  });
+}
+
+class _RecordingDelegate extends SourcepointEventDelegatePlatform {
+  _RecordingDelegate(void Function(ConsentAction) onAction)
+    : super(onAction: onAction);
 }
diff --git a/packages/sourcepoint_unified_cmp_ios/test/sourcepoint_unified_cmp_ios_test.mocks.dart b/packages/sourcepoint_unified_cmp_ios/test/sourcepoint_unified_cmp_ios_test.mocks.dart
index a69d9ef..ec57ee3 100644
--- a/packages/sourcepoint_unified_cmp_ios/test/sourcepoint_unified_cmp_ios_test.mocks.dart
+++ b/packages/sourcepoint_unified_cmp_ios/test/sourcepoint_unified_cmp_ios_test.mocks.dart
@@ -3,6 +3,7 @@
 // Do not manually edit this file.
 
 // ignore_for_file: no_leading_underscores_for_library_prefixes
+
 import 'dart:async' as _i4;
 
 import 'package:mockito/mockito.dart' as _i1;
@@ -61,6 +62,9 @@ class MockSourcepointUnifiedCmpHostApi extends _i1.Mock
     required int? messageTimeout,
     required bool? runGDPRCampaign,
     required bool? runCCPACampaign,
+    required Map<String, String>? gdprTargetingParams,
+    required Map<String, String>? ccpaTargetingParams,
+    String? authId,
   }) =>
       (super.noSuchMethod(
             Invocation.method(#loadMessage, [], {
@@ -73,6 +77,9 @@ class MockSourcepointUnifiedCmpHostApi extends _i1.Mock
               #messageTimeout: messageTimeout,
               #runGDPRCampaign: runGDPRCampaign,
               #runCCPACampaign: runCCPACampaign,
+              #gdprTargetingParams: gdprTargetingParams,
+              #ccpaTargetingParams: ccpaTargetingParams,
+              #authId: authId,
             }),
             returnValue: _i4.Future<_i2.HostAPISPConsent>.value(
               _FakeHostAPISPConsent_0(
@@ -87,6 +94,9 @@ class MockSourcepointUnifiedCmpHostApi extends _i1.Mock
                   #messageTimeout: messageTimeout,
                   #runGDPRCampaign: runGDPRCampaign,
                   #runCCPACampaign: runCCPACampaign,
+                  #gdprTargetingParams: gdprTargetingParams,
+                  #ccpaTargetingParams: ccpaTargetingParams,
+                  #authId: authId,
                 }),
               ),
             ),
@@ -103,6 +113,9 @@ class MockSourcepointUnifiedCmpHostApi extends _i1.Mock
                   #messageTimeout: messageTimeout,
                   #runGDPRCampaign: runGDPRCampaign,
                   #runCCPACampaign: runCCPACampaign,
+                  #gdprTargetingParams: gdprTargetingParams,
+                  #ccpaTargetingParams: ccpaTargetingParams,
+                  #authId: authId,
                 }),
               ),
             ),
diff --git a/packages/sourcepoint_unified_cmp_platform_interface/lib/src/controller.dart b/packages/sourcepoint_unified_cmp_platform_interface/lib/src/controller.dart
index 91b9f64..6d0a2f5 100644
--- a/packages/sourcepoint_unified_cmp_platform_interface/lib/src/controller.dart
+++ b/packages/sourcepoint_unified_cmp_platform_interface/lib/src/controller.dart
@@ -28,7 +28,7 @@ abstract class AbstractSourcepointConsentController
 
   /// Loading the First Layer Message
   /// and returns the initial consent status
-  Future<SPConsent> loadMessage();
+  Future<SPConsent> loadMessage({String? authId});
 
   /// Programmatically grant custom GDPR consent to the supplied [vendors],
   /// [categories] and [legIntCategories].
diff --git a/packages/sourcepoint_unified_cmp_platform_interface/lib/src/interface.dart b/packages/sourcepoint_unified_cmp_platform_interface/lib/src/interface.dart
index e9d169a..a83e1a2 100644
--- a/packages/sourcepoint_unified_cmp_platform_interface/lib/src/interface.dart
+++ b/packages/sourcepoint_unified_cmp_platform_interface/lib/src/interface.dart
@@ -74,7 +74,11 @@ abstract class SourcepointUnifiedCmpPlatform extends PlatformInterface {
   }
 
   /// show privacy manager
-  Future<SPConsent> loadMessage(SPConfig config) {
+  ///
+  /// [authId] identifies the signed-in user to Sourcepoint, so a consent
+  /// decision taken on one device or on the web is found again instead of
+  /// the message being shown a second time.
+  Future<SPConsent> loadMessage(SPConfig config, {String? authId}) {
     throw UnimplementedError('loadMessage() has not been implemented.');
   }
 
diff --git a/packages/sourcepoint_unified_cmp_platform_interface/lib/src/method_channel.dart b/packages/sourcepoint_unified_cmp_platform_interface/lib/src/method_channel.dart
index c2d4378..322a328 100644
--- a/packages/sourcepoint_unified_cmp_platform_interface/lib/src/method_channel.dart
+++ b/packages/sourcepoint_unified_cmp_platform_interface/lib/src/method_channel.dart
@@ -14,9 +14,10 @@ class MethodChannelSourcepointUnifiedCmp extends SourcepointUnifiedCmpPlatform {
   ConsentChangeNotifier? _notifier;
 
   @override
-  Future<SPConsent> loadMessage(SPConfig config) async {
+  Future<SPConsent> loadMessage(SPConfig config, {String? authId}) async {
     return (await methodChannel.invokeMethod<SPConsent>('loadMessage', [
       config,
+      authId,
     ]))!;
   }
 
diff --git a/packages/sourcepoint_unified_cmp_platform_interface/lib/src/types.dart b/packages/sourcepoint_unified_cmp_platform_interface/lib/src/types.dart
index 86d412d..556352a 100644
--- a/packages/sourcepoint_unified_cmp_platform_interface/lib/src/types.dart
+++ b/packages/sourcepoint_unified_cmp_platform_interface/lib/src/types.dart
@@ -46,6 +46,7 @@ class SPConfig {
     this.messageLanguage = MessageLanguage.english,
     this.campaignsEnv = CampaignsEnv.public,
     this.messageTimeout = 30000,
+    this.targetingParams = const {},
   });
 
   /// The account ID associated with the source point.
@@ -73,6 +74,19 @@ class SPConfig {
   ///
   /// The [campaigns] property holds a list of [CampaignType] objects.
   final List<CampaignType> campaigns;
+
+  /// Targeting params sent with each campaign, keyed by the campaign they
+  /// belong to.
+  ///
+  /// Sourcepoint's scenario in the portal matches on these to decide which
+  /// message a property serves, so they are what lets an app ask for a
+  /// different first layer than the one the scenario falls through to.
+  ///
+  /// An entry is sent only for a campaign that [campaigns] also lists and
+  /// that `loadMessage` itself runs, which is [CampaignType.gdpr] and
+  /// [CampaignType.ccpa] on both platforms and [CampaignType.usnat] on
+  /// Android. Every other entry is ignored.
+  final Map<CampaignType, Map<String, String>> targetingParams;
 }
 
 /// Selected tab within the privacy manager.
diff --git a/packages/sourcepoint_unified_cmp_platform_interface/test/controller_test.dart b/packages/sourcepoint_unified_cmp_platform_interface/test/controller_test.dart
index 3be9d48..924ed26 100644
--- a/packages/sourcepoint_unified_cmp_platform_interface/test/controller_test.dart
+++ b/packages/sourcepoint_unified_cmp_platform_interface/test/controller_test.dart
@@ -30,7 +30,7 @@ class _TestController extends AbstractSourcepointConsentController
   }) async {}
 
   @override
-  Future<SPConsent> loadMessage() async => SPConsent();
+  Future<SPConsent> loadMessage({String? authId}) async => SPConsent();
 
   @override
   Future<SPConsent> customConsentGdpr({
diff --git a/packages/sourcepoint_unified_cmp_platform_interface/test/sourcepoint_unified_cmp_platform_interface_test.mocks.dart b/packages/sourcepoint_unified_cmp_platform_interface/test/sourcepoint_unified_cmp_platform_interface_test.mocks.dart
index 68dcd32..5fe574b 100644
--- a/packages/sourcepoint_unified_cmp_platform_interface/test/sourcepoint_unified_cmp_platform_interface_test.mocks.dart
+++ b/packages/sourcepoint_unified_cmp_platform_interface/test/sourcepoint_unified_cmp_platform_interface_test.mocks.dart
@@ -3,6 +3,7 @@
 // Do not manually edit this file.
 
 // ignore_for_file: no_leading_underscores_for_library_prefixes
+
 import 'dart:async' as _i5;
 
 import 'package:flutter/services.dart' as _i2;
@@ -62,14 +63,23 @@ class MockMethodChannelSourcepointUnifiedCmp extends _i1.Mock
           as _i2.MethodChannel);
 
   @override
-  _i5.Future<_i3.SPConsent> loadMessage(_i3.SPConfig? config) =>
+  _i5.Future<_i3.SPConsent> loadMessage(
+    _i3.SPConfig? config, {
+    String? authId,
+  }) =>
       (super.noSuchMethod(
-            Invocation.method(#loadMessage, [config]),
+            Invocation.method(#loadMessage, [config], {#authId: authId}),
             returnValue: _i5.Future<_i3.SPConsent>.value(
-              _FakeSPConsent_1(this, Invocation.method(#loadMessage, [config])),
+              _FakeSPConsent_1(
+                this,
+                Invocation.method(#loadMessage, [config], {#authId: authId}),
+              ),
             ),
             returnValueForMissingStub: _i5.Future<_i3.SPConsent>.value(
-              _FakeSPConsent_1(this, Invocation.method(#loadMessage, [config])),
+              _FakeSPConsent_1(
+                this,
+                Invocation.method(#loadMessage, [config], {#authId: authId}),
+              ),
             ),
           )
           as _i5.Future<_i3.SPConsent>);
diff --git a/packages/sourcepoint_unified_cmp_platform_interface/test/types_test.dart b/packages/sourcepoint_unified_cmp_platform_interface/test/types_test.dart
index 190a3fc..a170e62 100644
--- a/packages/sourcepoint_unified_cmp_platform_interface/test/types_test.dart
+++ b/packages/sourcepoint_unified_cmp_platform_interface/test/types_test.dart
@@ -19,6 +19,7 @@ void main() {
       expect(config.messageLanguage, MessageLanguage.english);
       expect(config.campaignsEnv, CampaignsEnv.public);
       expect(config.messageTimeout, 30000);
+      expect(config.targetingParams, isEmpty);
     });
 
     test('creates with optional parameters overriding defaults', () {
@@ -37,6 +38,26 @@ void main() {
       expect(config.messageTimeout, 10000);
       expect(config.campaigns, contains(CampaignType.ccpa));
     });
+
+    test('keeps targeting params separate per campaign', () {
+      final config = SPConfig(
+        accountId: 22,
+        propertyId: 7639,
+        propertyName: 'test.property',
+        pmId: '123',
+        campaigns: [CampaignType.gdpr, CampaignType.ccpa],
+        targetingParams: {
+          CampaignType.gdpr: {'message': 'pur', 'legal': 'no'},
+          CampaignType.ccpa: {'message': 'ccpa'},
+        },
+      );
+      expect(config.targetingParams[CampaignType.gdpr], {
+        'message': 'pur',
+        'legal': 'no',
+      });
+      expect(config.targetingParams[CampaignType.ccpa], {'message': 'ccpa'});
+      expect(config.targetingParams[CampaignType.usnat], isNull);
+    });
   });
 
   group('GDPRPurposeGrants', () {