> ## 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. # Resume campaign > Resumes a paused campaign. Its remaining recipients are sent after the same checks as before the pause. `409` means the campaign is not paused or has no active delivery run to resume. Requires `campaigns:manage`. Project tokens only access resources in their own project. ## OpenAPI ````yaml api-reference/features/campaigns.json POST /platform/campaigns/{campaignId}/resume openapi: 3.0.3 info: title: Campaigns API methods version: 1.0.0 description: Task-focused campaigns methods across supported Polymorfa connection types. servers: [] security: [] paths: /platform/campaigns/{campaignId}/resume: post: tags: - Campaigns summary: Resume campaign description: >- Resumes a paused campaign. Its remaining recipients are sent after the same checks as before the pause. `409` means the campaign is not paused or has no active delivery run to resume. Requires `campaigns:manage`. Project tokens only access resources in their own project. operationId: managementResumePlatformCampaign parameters: - name: campaignId in: path required: true schema: type: string description: Identifier for the campaign. - name: Idempotency-Key in: header required: false description: >- Optional unique key, 1 to 255 bytes, that makes this request safe to retry for 24 hours. A retry with the same key, credential, `Polymorfa-Version` and request never runs it again: it returns `409 idempotency_completed` when the original succeeded, or the original server error. Reusing the key for a different request returns `409 idempotency_conflict`; a retry while the original is still running returns `409 idempotency_in_progress`, and a retry after an unrecorded outcome returns `409 idempotency_outcome_unknown`. **Value constraints** | Constraint | Accepted input | | --- | --- | | String length | `1` through `255` characters | schema: type: string minLength: 1 maxLength: 255 requestBody: required: false content: application/json: schema: type: object additionalProperties: true 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: type: object additionalProperties: true required: - id - status - operationId properties: id: type: string format: uuid description: |- Identifier for this resource. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uuid` | status: type: string enum: - draft - running - paused - cancelling - cancelled - completed - failed - archived description: |- Current status of this resource or operation. **Allowed values** | Value | Meaning | | --- | --- | | `draft` | Draft. | | `running` | Running. | | `paused` | Paused. | | `cancelling` | Cancelling. | | `cancelled` | Cancelled. | | `completed` | Completed. | | `failed` | Failed. | | `archived` | Archived. | operationId: type: string format: uuid description: |- The operation that carries this lifecycle action. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uuid` | description: Structured data carried by this object. required: - data '401': $ref: '#/components/responses/management__Unauthorized' '403': $ref: '#/components/responses/management__Forbidden' '404': $ref: '#/components/responses/management__NotFound' '409': $ref: '#/components/responses/management__Conflict' security: - management__ApiKeyAuth: [] servers: - url: https://api.polymorfa.com components: responses: 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 team 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' schemas: management__ErrorEnvelope: type: object required: - error - data - docs properties: error: type: object required: - type - code - message - param - request_id 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` | request_id: type: string description: >- Matches the X-Request-Id response header. Include it when you contact support. request_log_url: type: string format: uri description: >- Console page that shows this request. Returned only to organization and project credentials whose request was logged. **Value constraints** | Constraint | Accepted input | | --- | --- | | Format | `uri` | 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` | securitySchemes: management__ApiKeyAuth: type: http scheme: bearer description: >- Send your team API key or project token as `Authorization: Bearer `. The credential must have the required permissions. Project tokens can access only their own project. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.