Revert Workflow To Version

Overwrite the editable draft with the graph pinned by a deployment version, discarding every unsaved edit. This is the most destructive operation in the deployment family and it does not change what is live — to move production, use activate or rollback, both of which leave the draft alone. Pass active as the version to discard draft edits and return to the live graph. A workspace API key is rejected with 403; use a personal API key.

POST/api/v2/workflows/{workflowId}/versions/{version}/revert

Authorization

apiKey
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

Path Parameters

version*|

Numeric deployment version, or active for the currently live version.

workflowId*string

Unique workflow identifier.

Length1 <= length

Request Body

application/json

No body. The version to load into the draft is named by the request path.

TypeScript Definitions

Use the request body type in TypeScript.

No body. The version to load into the draft is named by the request path.

Default{}

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

curl -X POST "https://www.sim.ai/api/v2/workflows/string/versions/3/revert" \  -H "X-API-Key: YOUR_API_KEY" \  -H "Content-Type: application/json" \  -d '{}'
{
  "data": {
    "id": "3b1f7c92-8d4e-4a6b-9c0d-5e2f8a714b36",
    "version": 3,
    "lastSaved": 1765535400000
  }
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "Invalid request"
  }
}
{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "API key required"
  }
}
{
  "error": {
    "code": "FORBIDDEN",
    "message": "Insufficient workspace permissions",
    "details": {
      "code": "INSUFFICIENT_WORKSPACE_ROLE"
    }
  }
}
{
  "error": {
    "code": "NOT_FOUND",
    "message": "Not found"
  }
}
{
  "error": {
    "code": "CONFLICT",
    "message": "Webhook path already in use"
  }
}
{
  "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"
  }
}