> ## Documentation Index > Fetch the complete documentation index at: https://docs.polymorfa.com/llms.txt > Use this file to discover all available pages before exploring further. # Retry project webhook delivery > Appends a new immutable attempt to the same logical delivery owned by the exact project. Requires `webhook-deliveries:retry`. Project tokens only access resources in their own project. ## OpenAPI ````yaml api-reference/features/operate.json POST /platform/projects/{projectId}/webhook-deliveries/{deliveryId}/retry openapi: 3.0.3 info: title: Operate API methods version: 1.0.0 description: Task-focused operate methods across supported Polymorfa connection types. servers: [] security: [] paths: /platform/projects/{projectId}/webhook-deliveries/{deliveryId}/retry: post: tags: - Webhook Deliveries summary: Retry project webhook delivery description: >- Appends a new immutable attempt to the same logical delivery owned by the exact project. Requires `webhook-deliveries:retry`. Project tokens only access resources in their own project. operationId: managementRetryProjectWebhookDelivery parameters: - name: projectId in: path required: true schema: type: string format: uuid description: |- Identifier of the Polymorfa project that owns this resource. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uuid` | - name: deliveryId in: path required: true schema: type: string format: uuid description: |- Identifier for the delivery. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uuid` | - name: Idempotency-Key in: header required: true schema: type: string minLength: 1 maxLength: 255 description: |- Specifies idempotency key for this header parameter. **Value constraints** | Constraint | Accepted input | | --- | --- | | String length | `1` through `255` characters | responses: '200': description: Success headers: X-Request-Id: schema: type: string description: Stable request correlation identifier. Polymorfa-Version: schema: type: string description: API version applied to this response. content: application/json: schema: type: object additionalProperties: false properties: data: allOf: - $ref: >- #/components/schemas/management__ProjectWebhookDeliveryRetryReceipt description: Structured data carried by this object. required: - data '400': $ref: '#/components/responses/management__BadRequest' '401': $ref: '#/components/responses/management__Unauthorized' '403': $ref: '#/components/responses/management__Forbidden' '404': $ref: '#/components/responses/management__NotFound' '409': $ref: '#/components/responses/management__Conflict' '422': $ref: '#/components/responses/management__Unprocessable' security: - management__ApiKeyAuth: [] servers: - url: https://api.polymorfa.com - url: http://localhost:8080 description: local dev components: schemas: management__ProjectWebhookDeliveryRetryReceipt: type: object additionalProperties: false properties: operationId: type: string format: uuid description: |- Identifier used to retrieve the asynchronous operation. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uuid` | idempotency: allOf: - $ref: '#/components/schemas/management__IdempotencyReceipt' description: >- Specifies idempotency for this management project webhook delivery retry receipt. deliveryId: type: string format: uuid description: |- Identifier for the delivery. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uuid` | attemptId: type: string format: uuid description: |- Identifier for the attempt. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uuid` | required: - deliveryId - attemptId - operationId - idempotency management__IdempotencyReceipt: type: object additionalProperties: false properties: id: type: string format: uuid description: |- Identifier for this resource. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uuid` | key: type: string minLength: 1 maxLength: 255 description: |- Specifies key for this management idempotency receipt. **Value constraints** | Constraint | Accepted input | | --- | --- | | String length | `1` through `255` characters | replayed: type: boolean description: Whether replayed. createdAt: type: string format: date-time description: |- ISO 8601 timestamp when this resource was created. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `date-time` | expiresAt: type: string format: date-time description: |- ISO 8601 timestamp when this resource expires. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `date-time` | required: - id - key - replayed - createdAt - expiresAt management__ErrorEnvelope: type: object required: - error - data - docs properties: error: type: object required: - type - code - message - param properties: type: type: string enum: - invalid_request_error - authentication_error - permission_error - conflict_error - rate_limit_error - api_error - upstream_error description: |- Type discriminator for this object. **Allowed values** | Value | Meaning | | --- | --- | | `invalid_request_error` | Invalid request error. | | `authentication_error` | Authentication error. | | `permission_error` | Permission error. | | `conflict_error` | Conflict error. | | `rate_limit_error` | Rate limit error. | | `api_error` | Api error. | | `upstream_error` | Upstream error. | code: type: string description: Stable failure code. Use this value for programmatic handling. message: type: string description: Safe explanation of the failure. param: type: string nullable: true description: |- Invalid request field, or null when no field applies. **Accepted alternatives** | Alternative | Accepted input | | --- | --- | | Alternative 1 | Type: `string` | | Alternative 2 | `null` | description: Error details returned when the operation fails. data: type: string nullable: true enum: - null description: |- Always null for a failed request. **Allowed values** | Value | Meaning | | --- | --- | | `null` | Null. | **Accepted alternatives** | Alternative | Accepted input | | --- | --- | | Alternative 1 | Type: `string` | | Alternative 2 | `null` | docs: type: string format: uri description: |- Documentation link to this failure code. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uri` | responses: management__BadRequest: description: A path, query, or request-body value did not pass validation. headers: X-Request-Id: schema: type: string description: Stable request correlation identifier. Polymorfa-Version: schema: type: string description: API version applied to this response. content: application/json: schema: $ref: '#/components/schemas/management__ErrorEnvelope' management__Unauthorized: description: Missing/invalid credential for this audience. headers: X-Request-Id: schema: type: string description: Stable request correlation identifier. Polymorfa-Version: schema: type: string description: API version applied to this response. content: application/json: schema: $ref: '#/components/schemas/management__ErrorEnvelope' management__Forbidden: description: Authenticated but lacks the required scope/role/audience. headers: X-Request-Id: schema: type: string description: Stable request correlation identifier. Polymorfa-Version: schema: type: string description: API version applied to this response. content: application/json: schema: $ref: '#/components/schemas/management__ErrorEnvelope' management__NotFound: description: >- The requested resource was not found inside the authenticated organization or project scope. headers: X-Request-Id: schema: type: string description: Stable request correlation identifier. Polymorfa-Version: schema: type: string description: API version applied to this response. content: application/json: schema: $ref: '#/components/schemas/management__ErrorEnvelope' management__Conflict: description: The request conflicts with the resource's current state. headers: X-Request-Id: schema: type: string description: Stable request correlation identifier. Polymorfa-Version: schema: type: string description: API version applied to this response. content: application/json: schema: $ref: '#/components/schemas/management__ErrorEnvelope' management__Unprocessable: description: The retained payload is unavailable or no longer replayable. headers: X-Request-Id: schema: type: string description: Stable request correlation identifier. Polymorfa-Version: schema: type: string description: API version applied to this response. content: application/json: schema: $ref: '#/components/schemas/management__ErrorEnvelope' securitySchemes: management__ApiKeyAuth: type: http scheme: bearer description: >- Polymorfa server credential: a scoped pmfa_ organization key, or a pmfa_pt_ project token on project- and session-bound operations inside its exact authenticated project. Keys may be personal or service-account owned. Both enforce selected action scopes; organization keys can address team resources and every project in the organization. Listener and browser client credentials are rejected. ````