Issue

You may experience HTTP 409 Conflict errors when attempting to create an execution for a contact already in an active execution within Twilio Studio Flows. 

Product

Twilio Studio

Cause

The HTTP 409 Conflict error occurs when a request is made to create a new execution for a contact that is already involved in an active execution. This conflict prevents the creation of a new execution until the existing one is resolved.

Resolution

To resolve the HTTP 409 Conflict error, follow these steps:

1. Identify the Conflicting Execution:
   The error message will reference the conflicting execution SID. Note this SID for further action.
2. End the Existing Active Execution:
   Use the Twilio API to end the existing active execution. You can do this by sending a request to the API endpoint with the conflicting execution SID.
3. Retry the Execution Request:
   Once the existing execution is ended, retry the request to create a new execution for the contact.