Rollback workflow

Activate a previous deployment version asynchronously, defaulting to the preceding active version. Requires workspace Admin access and a deployed workflow. The draft is unchanged. Poll the accepted latestDeploymentAttempt. To select a version while undeployed, use Activate workflow version. Workspace API keys return 403; use a personal API key or scoped OAuth token.

OAuth scope: api:write.

POST/api/v2/workflows/{workflowId}/rollback

Authorization

X-API-Key<token>

Your Sim API key, personal or workspace-scoped. Generate one under Settings, then API Keys. Operations that reject workspace keys say so in their own description.

In: header

Request examples use an API key. For OAuth, replace the X-API-Key header with Authorization: Bearer YOUR_ACCESS_TOKEN.

curl -X POST "https://www.sim.ai/api/v2/workflows/3b1f7c92-8d4e-4a6b-9c0d-5e2f8a714b36/rollback" \  -H "X-API-Key: YOUR_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "version": 2  }'
{
  "data": {
    "id": "3b1f7c92-8d4e-4a6b-9c0d-5e2f8a714b36",
    "isDeployed": false,
    "deployedAt": null,
    "warnings": [],
    "activeDeployment": null,
    "latestDeploymentAttempt": {
      "id": "depop_01J8ZK4RX5N7Y3S0U8D6E1W2",
      "deploymentVersionId": "depver_01J8ZK4RX5N7Y3S0U8D6E1W3",
      "version": 2,
      "action": "activate",
      "status": "activating",
      "isCurrent": true,
      "readiness": {
        "webhooks": "ready",
        "schedules": "ready",
        "mcp": "not_applicable"
      },
      "requestedAt": "2026-06-12T10:30:00.000Z",
      "activatedAt": null,
      "error": null
    },
    "version": 2
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "Invalid request"
  }
}
{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Authentication required"
  }
}
{
  "error": {
    "code": "FORBIDDEN",
    "message": "Insufficient workspace permissions",
    "details": {
      "code": "INSUFFICIENT_WORKSPACE_ROLE"
    }
  }
}
{
  "error": {
    "code": "NOT_FOUND",
    "message": "Not found"
  }
}
{
  "error": {
    "code": "CONFLICT",
    "message": "The request conflicts with current resource state"
  }
}
{
  "error": {
    "code": "PAYLOAD_TOO_LARGE",
    "message": "Request body is too large"
  }
}
{
  "error": {
    "code": "UNSUPPORTED_MEDIA_TYPE",
    "message": "Request body must be sent as application/json"
  }
}
{
  "error": {
    "code": "LOCKED",
    "message": "Workflow is locked"
  }
}
{
  "error": {
    "code": "RATE_LIMITED",
    "message": "API rate limit exceeded",
    "details": {
      "retryAfter": "2026-01-01T00:00:30.000Z"
    }
  }
}
{
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Internal server error"
  }
}
{
  "error": {
    "code": "SERVICE_UNAVAILABLE",
    "message": "Service temporarily unavailable"
  }
}

Path parameters

workflowId*string

Unique workflow identifier.

Length1 <= length

Request body

application/json

Optional deployment version to reactivate.

TypeScript definitions

Use the request body type in TypeScript.

Response body

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

DELETEUndeploy workflowGETList chat deployments