WFM API 409 Conflict during Automated Shift Swap Validation

Struggling to understand why the WFM Shift Swap validation returns a 409 Conflict when checking against real-time adherence.

  1. Trigger Architect flow on swap request.
  2. Call WFM Real-Time API to check agent availability.
  3. POST to the alternative shift offers endpoint with the validated payload.

The endpoint rejects the swap despite the API confirming the agent is free. Is this a race condition in the write lock?

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I typically get around this by adding a 200ms delay after the Real-Time API call to ensure the schedule lock releases. The 409 often stems from the system still processing the previous adherence state. Using the If-Match header with the current schedule version also helps bypass stale conflict errors during high-volume swap windows.