diff --git a/services/external-actor-gateway-service/openapi.yaml b/services/external-actor-gateway-service/openapi.yaml
index 3b6be24..af7a34c 100644
--- a/services/external-actor-gateway-service/openapi.yaml
+++ b/services/external-actor-gateway-service/openapi.yaml
@@ -2381,6 +2381,85 @@ webhooks:
               additionalProperties: false
         description: Triggered when a page version is published. The webhook payload contains details about the published page version including page ID, version ID, and publishing timestamp.
         required: true
+  formSubmitted:
+    post:
+      description: Triggered when a form is submitted. The webhook payload contains details about the submitted form including form ID, submission ID, and submission timestamp.
+      responses:
+        "200":
+          description: Webhook received successfully
+      summary: Form Submitted
+      tags:
+        - Webhooks
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+              properties:
+                eventId:
+                  description: Unique identifier for this event
+                  examples:
+                    - evt_01j5k9m7n8p9q2r3s4t5v6w7x8
+                  type: string
+                tenantId:
+                  description: Tenant identifier for the event
+                  examples:
+                    - tenant_01j5k9m7n8p9q2r3s4t5v6w7x8
+                  type: string
+                timestamp:
+                  description: Timestamp when the event was processed
+                  examples:
+                    - 2024-01-15T10:30:00Z
+                  type: string
+                  format: date-time
+                  pattern: ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
+                payload:
+                  type: object
+                  properties:
+                    type:
+                      description: Event type identifier
+                      type: string
+                      enum:
+                        - form.submitted
+                    formId:
+                      description: Unique identifier for the form
+                      examples:
+                        - form_01j5k9m7n8p9q2r3s4t5v6w7x8
+                      type: string
+                    submissionId:
+                      description: Unique identifier for the form submission
+                      examples:
+                        - formsubmission_01j5k9m7n8p9q2r3s4t5v6w7x8
+                      type: string
+                    submittedAt:
+                      description: Timestamp when the form submission was submitted
+                      examples:
+                        - 2024-01-15T10:30:00Z
+                      type: string
+                      format: date-time
+                      pattern: ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
+                    input:
+                      description: Input data for the form submission
+                      examples:
+                        - name: email
+                          value: test@example.com
+                      type: object
+                      additionalProperties: {}
+                  required:
+                    - type
+                    - formId
+                    - submissionId
+                    - submittedAt
+                    - input
+                  additionalProperties: false
+              required:
+                - eventId
+                - tenantId
+                - timestamp
+                - payload
+              additionalProperties: false
+        description: Triggered when a form is submitted. The webhook payload contains details about the submitted form including form ID, submission ID, and submission timestamp.
+        required: true
 tags:
   - name: Page Groups
     description: Page group management operations