Common Module reuse — how to call a shared flow from multiple inbound call flows

Architect & Flows
1

I am trying to invoke a shared Common Module from multiple inbound Architect flows via the REST API, but I keep hitting a 404. My Laravel app uses Guzzle to hit /api/v2/architect/flows/{flowId}/execute.

  1. I retrieve the Common Module ID via the API.
  2. I send a POST request with the module ID in the payload.
  3. The response returns Flow not found.

Is the endpoint correct for executing a reusable module? Here is my JSON payload: