diff --git a/Cargo.lock b/Cargo.lock
index 11fd409c..0d35f961 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -717,7 +717,7 @@ checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
 
 [[package]]
 name = "sentry_protos"
-version = "0.37.0"
+version = "0.38.0"
 dependencies = [
  "prost",
  "prost-types",
diff --git a/proto/sentry_protos/billing/v1/services/charge/v1/charge.proto b/proto/sentry_protos/billing/v1/services/charge/v1/charge.proto
index 69a1cba8..bb03561b 100644
--- a/proto/sentry_protos/billing/v1/services/charge/v1/charge.proto
+++ b/proto/sentry_protos/billing/v1/services/charge/v1/charge.proto
@@ -31,6 +31,8 @@ message PlatformCharge {
   // sum ``refunds[*].amount_cents`` if they need the aggregate, and
   // ``len(refunds) > 0`` (or sum == amount) signals "refunded."
   repeated PlatformRefund refunds = 10;
+  // Unix epoch seconds when the charge row was created locally.
+  int64 date_added_st = 11;
 }
 
 // Canonical projection of a stored platform refund. One row per recorded
diff --git a/proto/sentry_protos/billing/v1/services/charge/v1/endpoint_list_charges_for_invoice_ids.proto b/proto/sentry_protos/billing/v1/services/charge/v1/endpoint_list_charges_for_invoice_ids.proto
new file mode 100644
index 00000000..087add16
--- /dev/null
+++ b/proto/sentry_protos/billing/v1/services/charge/v1/endpoint_list_charges_for_invoice_ids.proto
@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+package sentry_protos.billing.v1.services.charge.v1;
+
+import "sentry_protos/billing/v1/services/charge/v1/charge.proto";
+
+// Lists PlatformCharges for a batch of invoice ids, refunds pre-attached.
+message ListChargesForInvoiceIdsRequest {
+  repeated uint64 invoice_ids = 1;
+}
+
+message ListChargesForInvoiceIdsResponse {
+  repeated PlatformCharge charges = 1;
+}
diff --git a/proto/sentry_protos/billing/v1/services/charge/v1/endpoint_list_charges_for_organization.proto b/proto/sentry_protos/billing/v1/services/charge/v1/endpoint_list_charges_for_organization.proto
new file mode 100644
index 00000000..ca2e833d
--- /dev/null
+++ b/proto/sentry_protos/billing/v1/services/charge/v1/endpoint_list_charges_for_organization.proto
@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+package sentry_protos.billing.v1.services.charge.v1;
+
+import "sentry_protos/billing/v1/services/charge/v1/charge.proto";
+
+// Lists PlatformCharges for an organization, refunds pre-attached.
+message ListChargesForOrganizationRequest {
+  uint64 organization_id = 1;
+}
+
+message ListChargesForOrganizationResponse {
+  repeated PlatformCharge charges = 1;
+}
diff --git a/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_get_invoice_guids_for_ids.proto b/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_get_invoice_guids_for_ids.proto
new file mode 100644
index 00000000..94334039
--- /dev/null
+++ b/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_get_invoice_guids_for_ids.proto
@@ -0,0 +1,13 @@
+syntax = "proto3";
+
+package sentry_protos.billing.v1.services.contract.v1;
+
+// Batch-resolves PlatformInvoice ids to their guids. Missing ids are
+// silently omitted from the response.
+message GetInvoiceGuidsForIdsRequest {
+  repeated uint64 invoice_ids = 1;
+}
+
+message GetInvoiceGuidsForIdsResponse {
+  map<uint64, string> invoice_guids = 1;
+}
diff --git a/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_start_manual_payment.proto b/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_start_manual_payment.proto
new file mode 100644
index 00000000..e1e81eca
--- /dev/null
+++ b/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_start_manual_payment.proto
@@ -0,0 +1,13 @@
+syntax = "proto3";
+
+package sentry_protos.billing.v1.services.contract.v1;
+
+// Atomically stamps manual_payment_started_at on an unpaid PlatformInvoice.
+message StartManualPaymentRequest {
+  uint64 invoice_id = 1;
+}
+
+message StartManualPaymentResponse {
+  // False when no row matched paid=false (invoice paid, missing, or raced).
+  bool updated = 1;
+}
diff --git a/rust/src/sentry_protos.billing.v1.services.charge.v1.rs b/rust/src/sentry_protos.billing.v1.services.charge.v1.rs
index 07f1219c..4fc5f64f 100644
--- a/rust/src/sentry_protos.billing.v1.services.charge.v1.rs
+++ b/rust/src/sentry_protos.billing.v1.services.charge.v1.rs
@@ -41,6 +41,9 @@ pub struct PlatformCharge {
     /// `len(refunds) > 0` (or sum == amount) signals "refunded."
     #[prost(message, repeated, tag = "10")]
     pub refunds: ::prost::alloc::vec::Vec<PlatformRefund>,
+    /// Unix epoch seconds when the charge row was created locally.
+    #[prost(int64, tag = "11")]
+    pub date_added_st: i64,
 }
 /// Canonical projection of a stored platform refund. One row per recorded
 /// refund against a `PlatformCharge`.
@@ -168,6 +171,28 @@ pub struct ListChargesForInvoiceResponse {
     #[prost(message, repeated, tag = "1")]
     pub charges: ::prost::alloc::vec::Vec<Charge>,
 }
+/// Lists PlatformCharges for a batch of invoice ids, refunds pre-attached.
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct ListChargesForInvoiceIdsRequest {
+    #[prost(uint64, repeated, tag = "1")]
+    pub invoice_ids: ::prost::alloc::vec::Vec<u64>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ListChargesForInvoiceIdsResponse {
+    #[prost(message, repeated, tag = "1")]
+    pub charges: ::prost::alloc::vec::Vec<PlatformCharge>,
+}
+/// Lists PlatformCharges for an organization, refunds pre-attached.
+#[derive(Clone, Copy, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct ListChargesForOrganizationRequest {
+    #[prost(uint64, tag = "1")]
+    pub organization_id: u64,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ListChargesForOrganizationResponse {
+    #[prost(message, repeated, tag = "1")]
+    pub charges: ::prost::alloc::vec::Vec<PlatformCharge>,
+}
 /// Lists every recorded refund associated with the charges for a single
 /// platform invoice. Callers in the presentation layer use this to render
 /// invoice-level refund state without crossing the charge service boundary.
diff --git a/rust/src/sentry_protos.billing.v1.services.contract.v1.rs b/rust/src/sentry_protos.billing.v1.services.contract.v1.rs
index 65224b73..3d4853ac 100644
--- a/rust/src/sentry_protos.billing.v1.services.contract.v1.rs
+++ b/rust/src/sentry_protos.billing.v1.services.contract.v1.rs
@@ -472,6 +472,8 @@ pub struct ContractMetadata {
     pub billing_features: ::core::option::Option<super::super::super::FeatureOptions>,
     #[prost(string, tag = "9")]
     pub package_uid: ::prost::alloc::string::String,
+    #[prost(uint64, optional, tag = "10")]
+    pub previous_id: ::core::option::Option<u64>,
     #[deprecated]
     #[prost(uint64, tag = "8")]
     pub package_id: u64,
@@ -584,6 +586,18 @@ pub struct GetInvoiceResponse {
     #[prost(message, optional, tag = "1")]
     pub invoice: ::core::option::Option<Invoice>,
 }
+/// Batch-resolves PlatformInvoice ids to their guids. Missing ids are
+/// silently omitted from the response.
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct GetInvoiceGuidsForIdsRequest {
+    #[prost(uint64, repeated, tag = "1")]
+    pub invoice_ids: ::prost::alloc::vec::Vec<u64>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct GetInvoiceGuidsForIdsResponse {
+    #[prost(map = "uint64, string", tag = "1")]
+    pub invoice_guids: ::std::collections::HashMap<u64, ::prost::alloc::string::String>,
+}
 #[derive(Clone, Copy, PartialEq, Eq, Hash, ::prost::Message)]
 pub struct GetUnchargedInvoicesRequest {
     /// Returns Invoices whose current billing period ends before this time and
@@ -746,3 +760,15 @@ pub struct RolloverContractResponse {
     #[prost(uint64, tag = "4")]
     pub new_contract_id: u64,
 }
+/// Atomically stamps manual_payment_started_at on an unpaid PlatformInvoice.
+#[derive(Clone, Copy, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct StartManualPaymentRequest {
+    #[prost(uint64, tag = "1")]
+    pub invoice_id: u64,
+}
+#[derive(Clone, Copy, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct StartManualPaymentResponse {
+    /// False when no row matched paid=false (invoice paid, missing, or raced).
+    #[prost(bool, tag = "1")]
+    pub updated: bool,
+}