POST /v2/wfm/schedules/publish returns HTTP 422 Unprocessable Entity. Response body: {"code": "invalid_request", "message": "Agent shift overlaps detected for schedule period"}. This occurs during the weekly Friday publish at 04:00 CT, specifically affecting agents with pre-approved shift swaps.
Any insights on hidden conflict triggers?
It depends, but generally… this 422 error stems from a discrepancy between the visual representation in the WFM dashboard and the precise timestamp validation performed by the backend publish engine. The dashboard often rounds shift times to the nearest fifteen-minute increment for UI simplicity, whereas the API validates against exact second-level precision. When pre-approved shift swaps are involved, the system checks for micro-overlaps that might not be visible in the grid view.
The issue frequently arises when a swap record’s end time coincides exactly with the start time of the subsequent scheduled shift. The API treats this as an overlap rather than a contiguous sequence. To resolve this, adjust the shift swap payloads to include a one-second buffer or ensure the end time of the swapped shift is strictly less than the start time of the following assignment.
Verify the start_time and end_time fields in your JSON payload. They must be in ISO 8601 format with timezone offsets. For example:
{
"agent_id": "12345",
"schedule_id": "67890",
"shifts": [
{
"start_time": "2024-05-10T08:00:00-05:00",
"end_time": "2024-05-10T16:59:59-05:00"
}
]
}
Additionally, check if the swap approval status is fully committed in the database before triggering the publish. Sometimes, asynchronous status updates lag behind the UI, causing the API to reject the schedule. Review the WFM Schedule API Documentation for specific validation rules regarding contiguous shifts. Implementing a pre-publish validation script that checks for these timestamp collisions can prevent this error during high-volume weekly publishes.