Rolled out UKG to 500 users in retail - integration and compliance issues

We just finished rolling out UKG Pro to about 500 retail employees across 20+ locations. The implementation was... intense.

I'm mostly here because we've hit some snags. Our time clocks are supposed to sync seamlessly, but we're seeing daily discrepancies that the support team calls "data latency." Also, getting clear answers on specific state-level meal break compliance rules has been harder than expected. The system is powerful, but I feel like we're constantly working around something.

Has anyone else managed a UKG rollout at this scale, especially in retail? How did you handle the integration stability and getting definitive compliance guidance? I'd love to hear what worked.