409 Conflict: Schedule publish failed due to overlapping shift constraints for agent_id: 8a12b3c4-5678-90ab-cdef-1234567890ab. Reason: shift_swap_conflict.
The bulk schedule publish job is failing consistently for a subset of agents in the Chicago support queue. The error points to a shift_swap_conflict, yet the manual schedule view in the WFM portal shows no active swaps for these users during the target week.
We are using the standard publish flow via the SDK. The payload includes schedule_version_id and publish_scope set to agents. Debugging the request body reveals that the shift_trades array is empty for the failing agents, which should mean no conflicts exist.
Is there a known latency issue between the self-service shift swap module and the schedule publishing engine in this release? Or could the America/Chicago daylight saving transition logic be incorrectly flagging a boundary condition? We need to publish these schedules by 17:00 CST today.
If I remember right, the 409 conflict often stems from how the WFM engine interprets pending swap statuses during the publish cycle. The performance dashboard relies on clean shift data to calculate accurate service levels, so overlapping constraints block the publish.
Check the payload for the affected agent. Ensure that any existing swap is explicitly marked as accepted or rejected before attempting the bulk publish. If the swap status remains pending, the system treats it as an ambiguous constraint, causing the conflict.
Validate the actual agent availability in the WFM console first. Sometimes the SDK sends the correct payload, but the underlying shift record in the database still holds a legacy pending state. Clearing that ambiguity usually resolves the publish error and prevents data integrity issues in the queue activity views.
This is typically caused by the API rejecting concurrent writes to the same schedule object. Try adding a simple exponential backoff in your Python script to stagger the publish requests.