We’re encountering consistent 400 Bad Request errors when syncing time entries from our external payroll system to Aveva MES am-2023.1 labor management API. The integration worked fine in testing but fails in production with actual shift data.
Our POST request includes employee ID, shift pattern, clock-in/out times, and break durations. The API responds with “Invalid time entry payload” but doesn’t specify which field is problematic. We’ve verified the shift pattern codes match our MES configuration.
Example payload structure:
{
"employeeId": "EMP-1234",
"shiftPattern": "2SHIFT-A",
"clockIn": "2025-03-15T06:00:00Z",
"breakMinutes": 30
}
The validation seems stricter than documented. Has anyone dealt with time entry validation requirements or shift pattern compliance issues in the labor management API?
I ran into this exact issue last month. The problem is usually multi-faceted with time entry validation. First, the API expects a departmentCode field that maps to your MES organizational structure - without it, validation fails silently with a generic 400. Second, if your shift pattern includes mandatory break periods, the breakMinutes value must match exactly or fall within the allowed variance (usually ±5 minutes). Third, check if your employeeId format includes the plant prefix that MES expects.
Use a separate facilityCode field rather than prefixing the employeeId. The labor management API in am-2023.1 uses facilityCode for plant context and employeeId should be the raw employee number. One more thing to watch - if you’re syncing historical time entries, there’s a configurable cutoff period (default 7 days). Entries older than that will be rejected even if the payload is valid.
I’ve seen similar validation failures with am-2023.1. The labor management API enforces strict schema compliance that isn’t always clear in the docs. Check if your shift pattern references are using the exact internal codes from MES, not the display names. Also, the clockOut field might be required even for ongoing shifts - try including it with a null or future timestamp.