diff --git a/csfunctions/events/__init__.py b/csfunctions/events/__init__.py
index 2429600..7f5dd7e 100644
--- a/csfunctions/events/__init__.py
+++ b/csfunctions/events/__init__.py
@@ -18,6 +18,7 @@
     CustomOperationPartEvent,
 )
 from .dialog_data import DocumentReleasedDialogData, PartReleasedDialogData
+from .document_blocked import DocumentBlockedData, DocumentBlockedEvent
 from .document_create_check import DocumentCreateCheckData, DocumentCreateCheckEvent
 from .document_field_calculation import DocumentFieldCalculationData, DocumentFieldCalculationEvent
 from .document_modify_check import DocumentModifyCheckData, DocumentModifyCheckEvent
@@ -32,6 +33,7 @@
 )
 from .engineering_change_status_changed import EngineeringChangeStatusChangedData, EngineeringChangeStatusChangedEvent
 from .field_value_calculation import FieldValueCalculationData, FieldValueCalculationEvent
+from .part_blocked import PartBlockedData, PartBlockedEvent
 from .part_create_check import PartCreateCheckData, PartCreateCheckEvent
 from .part_field_calculation import PartFieldCalculationData, PartFieldCalculationEvent
 from .part_modify_check import PartModifyCheckData, PartModifyCheckEvent
@@ -40,9 +42,11 @@
 from .workflow_task_trigger import WorkflowTaskTriggerEvent, WorkflowTaskTriggerEventData
 
 Event = Annotated[
-    DocumentReleasedEvent
+    DocumentBlockedEvent
+    | DocumentReleasedEvent
     | DocumentReleaseCheckEvent
     | DocumentFieldCalculationEvent
+    | PartBlockedEvent
     | PartReleasedEvent
     | PartReleaseCheckEvent
     | PartFieldCalculationEvent
@@ -71,9 +75,11 @@
     Field(discriminator="name"),
 ]
 EventData = (
-    DocumentReleasedData
+    DocumentBlockedData
+    | DocumentReleasedData
     | DocumentReleaseCheckData
     | DocumentFieldCalculationData
+    | PartBlockedData
     | PartReleasedData
     | PartReleaseCheckData
     | PartFieldCalculationData
@@ -102,9 +108,11 @@
 )
 
 __all__ = [
+    "DocumentBlockedEvent",
     "DocumentReleasedEvent",
     "DocumentReleaseCheckEvent",
     "DocumentFieldCalculationEvent",
+    "PartBlockedEvent",
     "PartReleasedEvent",
     "PartReleaseCheckEvent",
     "PartFieldCalculationEvent",
@@ -124,9 +132,11 @@
     "ChangeRequestStatusChangedEvent",
     "ChangeRequestStatusChangeCheckEvent",
     "WorkflowTaskTriggerEvent",
+    "DocumentBlockedData",
     "DocumentReleasedData",
     "DocumentReleaseCheckData",
     "DocumentFieldCalculationData",
+    "PartBlockedData",
     "PartReleasedData",
     "PartReleaseCheckData",
     "BOMItemFieldCalculationData",
diff --git a/csfunctions/events/base.py b/csfunctions/events/base.py
index 2134469..4adaeb8 100644
--- a/csfunctions/events/base.py
+++ b/csfunctions/events/base.py
@@ -5,9 +5,11 @@
 
 class EventNames(str, Enum):
     DUMMY = "dummy"
+    DOCUMENT_BLOCKED = "document_blocked"
     DOCUMENT_RELEASED = "document_released"
     DOCUMENT_RELEASE_CHECK = "document_release_check"
     DOCUMENT_FIELD_CALCULATION = "document_field_calculation"
+    PART_BLOCKED = "part_blocked"
     PART_RELEASED = "part_released"
     PART_RELEASE_CHECK = "part_release_check"
     PART_FIELD_CALCULATION = "part_field_calculation"
diff --git a/csfunctions/events/document_blocked.py b/csfunctions/events/document_blocked.py
new file mode 100644
index 0000000..20b65fa
--- /dev/null
+++ b/csfunctions/events/document_blocked.py
@@ -0,0 +1,17 @@
+from typing import Literal
+
+from pydantic import BaseModel, Field
+
+from csfunctions.objects import Document, Part
+
+from .base import BaseEvent, EventNames
+
+
+class DocumentBlockedData(BaseModel):
+    documents: list[Document] = Field(..., description="List of documents that were blocked.")
+    parts: list[Part] = Field(..., description="List of parts that belong to the documents.")
+
+
+class DocumentBlockedEvent(BaseEvent):
+    name: Literal[EventNames.DOCUMENT_BLOCKED] = EventNames.DOCUMENT_BLOCKED
+    data: DocumentBlockedData
diff --git a/csfunctions/events/part_blocked.py b/csfunctions/events/part_blocked.py
new file mode 100644
index 0000000..152bc78
--- /dev/null
+++ b/csfunctions/events/part_blocked.py
@@ -0,0 +1,17 @@
+from typing import Literal
+
+from pydantic import BaseModel, Field
+
+from csfunctions.objects import Document, Part
+
+from .base import BaseEvent, EventNames
+
+
+class PartBlockedData(BaseModel):
+    parts: list[Part] = Field(..., description="List of parts that were blocked.")
+    documents: list[Document] = Field(..., description="List of documents that belong to the parts.")
+
+
+class PartBlockedEvent(BaseEvent):
+    name: Literal[EventNames.PART_BLOCKED] = EventNames.PART_BLOCKED
+    data: PartBlockedData
diff --git a/docs/reference/events.md b/docs/reference/events.md
index 5260134..229b87c 100644
--- a/docs/reference/events.md
+++ b/docs/reference/events.md
@@ -94,6 +94,24 @@ This event is fired **after** a document has been released. Raising an exception
 | cdb_ec_id      | str \| None | Engineering Change ID |
 
 
+## DocumentBlockedEvent
+`csfunctions.events.DocumentBlockedEvent`
+
+This event is fired **after** a document has been blocked (status set to 170). Raising an exception thus can not prevent the blocking.
+
+**Supported actions:**
+
+- [StartWorkflowAction](actions.md#startworkflowaction)
+
+**DocumentBlockedEvent.name:** document_blocked
+
+**DocumentBlockedEvent.data:**
+
+| Attribute | Type                                  | Description                                 |
+| --------- | ------------------------------------- | ------------------------------------------- |
+| documents | list[[Document](objects.md#document)] | List of documents that were blocked.        |
+| parts     | list[[Part](objects.md#part)]         | List of parts that belong to the documents. |
+
 ## DocumentFieldCalculationEvent
 `csfunctions.events.DocumentFieldCalculationEvent`
 
@@ -405,6 +423,24 @@ This event is fired **after** a part has been released. Raising an exception thu
 | cdb_ec_id      | str \| None | Engineering Change ID |
 
 
+## PartBlockedEvent
+`csfunctions.events.PartBlockedEvent`
+
+This event is fired **after** a part has been blocked (status set to 170). Raising an exception thus can not prevent the blocking.
+
+**Supported actions:**
+
+- [StartWorkflowAction](actions.md#startworkflowaction)
+
+**PartBlockedEvent.name:** part_blocked
+
+**PartBlockedEvent.data:**
+
+| Attribute | Type                                  | Description                              |
+| --------- | ------------------------------------- | ---------------------------------------- |
+| parts     | list[[Part](objects.md#part)]         | List of parts that were blocked.         |
+| documents | list[[Document](objects.md#document)] | List of documents that belong to the parts. |
+
 ## PartFieldCalculationEvent
 `csfunctions.events.PartFieldCalculationEvent`
 
diff --git a/docs/release_notes.md b/docs/release_notes.md
index 96f63fd..1074f22 100644
--- a/docs/release_notes.md
+++ b/docs/release_notes.md
@@ -3,6 +3,9 @@ hide:
   - toc
 ---
 
+### Version 0.27.0
+- Feat: Add part_blocked and document_blocked events
+
 ### Version 0.26.0
 - Feat: Extend all multi-language object fields with Japanese (ja) and Chinese (zh) variants
 
diff --git a/json_schemas/request.json b/json_schemas/request.json
index 1bedcbd..12d4b64 100644
--- a/json_schemas/request.json
+++ b/json_schemas/request.json
@@ -7235,6 +7235,56 @@
       "title": "Document",
       "type": "object"
     },
+    "DocumentBlockedData": {
+      "properties": {
+        "documents": {
+          "description": "List of documents that were blocked.",
+          "items": {
+            "$ref": "#/$defs/Document"
+          },
+          "title": "Documents",
+          "type": "array"
+        },
+        "parts": {
+          "description": "List of parts that belong to the documents.",
+          "items": {
+            "$ref": "#/$defs/Part"
+          },
+          "title": "Parts",
+          "type": "array"
+        }
+      },
+      "required": [
+        "documents",
+        "parts"
+      ],
+      "title": "DocumentBlockedData",
+      "type": "object"
+    },
+    "DocumentBlockedEvent": {
+      "properties": {
+        "name": {
+          "const": "document_blocked",
+          "default": "document_blocked",
+          "title": "Name",
+          "type": "string"
+        },
+        "event_id": {
+          "description": "unique identifier",
+          "title": "Event Id",
+          "type": "string"
+        },
+        "data": {
+          "$ref": "#/$defs/DocumentBlockedData"
+        }
+      },
+      "required": [
+        "event_id",
+        "data"
+      ],
+      "title": "DocumentBlockedEvent",
+      "type": "object"
+    },
     "DocumentCreateCheckData": {
       "properties": {
         "documents": {
@@ -10959,6 +11009,56 @@
       "title": "Part",
       "type": "object"
     },
+    "PartBlockedData": {
+      "properties": {
+        "parts": {
+          "description": "List of parts that were blocked.",
+          "items": {
+            "$ref": "#/$defs/Part"
+          },
+          "title": "Parts",
+          "type": "array"
+        },
+        "documents": {
+          "description": "List of documents that belong to the parts.",
+          "items": {
+            "$ref": "#/$defs/Document"
+          },
+          "title": "Documents",
+          "type": "array"
+        }
+      },
+      "required": [
+        "parts",
+        "documents"
+      ],
+      "title": "PartBlockedData",
+      "type": "object"
+    },
+    "PartBlockedEvent": {
+      "properties": {
+        "name": {
+          "const": "part_blocked",
+          "default": "part_blocked",
+          "title": "Name",
+          "type": "string"
+        },
+        "event_id": {
+          "description": "unique identifier",
+          "title": "Event Id",
+          "type": "string"
+        },
+        "data": {
+          "$ref": "#/$defs/PartBlockedData"
+        }
+      },
+      "required": [
+        "event_id",
+        "data"
+      ],
+      "title": "PartBlockedEvent",
+      "type": "object"
+    },
     "PartCreateCheckData": {
       "properties": {
         "parts": {
@@ -11472,6 +11572,7 @@
           "change_request_status_changed": "#/$defs/ChangeRequestStatusChangedEvent",
           "custom_operation_document": "#/$defs/CustomOperationDocumentEvent",
           "custom_operation_part": "#/$defs/CustomOperationPartEvent",
+          "document_blocked": "#/$defs/DocumentBlockedEvent",
           "document_create_check": "#/$defs/DocumentCreateCheckEvent",
           "document_field_calculation": "#/$defs/DocumentFieldCalculationEvent",
           "document_modify_check": "#/$defs/DocumentModifyCheckEvent",
@@ -11483,6 +11584,7 @@
           "engineering_change_status_change_check": "#/$defs/EngineeringChangeStatusChangeCheckEvent",
           "engineering_change_status_changed": "#/$defs/EngineeringChangeStatusChangedEvent",
           "field_value_calculation": "#/$defs/FieldValueCalculationEvent",
+          "part_blocked": "#/$defs/PartBlockedEvent",
           "part_create_check": "#/$defs/PartCreateCheckEvent",
           "part_field_calculation": "#/$defs/PartFieldCalculationEvent",
           "part_modify_check": "#/$defs/PartModifyCheckEvent",
@@ -11493,6 +11595,9 @@
         "propertyName": "name"
       },
       "oneOf": [
+        {
+          "$ref": "#/$defs/DocumentBlockedEvent"
+        },
         {
           "$ref": "#/$defs/DocumentReleasedEvent"
         },
@@ -11502,6 +11607,9 @@
         {
           "$ref": "#/$defs/DocumentFieldCalculationEvent"
         },
+        {
+          "$ref": "#/$defs/PartBlockedEvent"
+        },
         {
           "$ref": "#/$defs/PartReleasedEvent"
         },