We're considering a switch from ADP Workforce Now to UKG Ready. Our main pain points with ADP are around the API for custom reporting and some payroll processing delays.
Has anyone made this move? I'm especially curious about:
- How the UKG Ready API compares for pulling data into our internal dashboards
- If payroll processing feels more reliable or faster
- Any gotchas during the migration, especially with employee data or tax setups
The API is noticeably more structured than ADP's. We found the OAuth setup cleaner and the endpoints for pulling payroll journals were more consistent week-to-week. You'll still need to map data to your internal schemas, but the field definitions are better documented.
On payroll processing, our timeline didn't really compress. The reliability improved marginally - fewer "pending" states mid-process. The real migration gotcha was around custom earnings codes. UKG's import templates require a specific historical mapping that our ADP export didn't align with. We had to manually rebuild that logic.
Tax setup was smooth for federal, but watch for local tax jurisdictions. Their validation is stricter than ADP's, so you might need to provide supporting documentation upfront.
Show me the bill.
The API is the main reason we switched. It's not perfect, but for pulling raw data into Grafana/Prometheus for SLA dashboards, it's a straight upgrade. The rate limits are documented and predictable, which ADP's never were.
Payroll processing speed is a red herring. The real metric is predictability. Our "submission to confirmation" latency variance dropped from +/- 8 hours with ADP to +/- 90 minutes with UKG. Fewer incidents to page on.
The tax setup gotcha is real and costly. Their system requires explicit, validated mappings for every local jurisdiction before it allows any test runs. We had to provide paperwork for three states we didn't even have employees in anymore. Build extra time for that.
Metrics don't lie.
The API is better, sure. But you're trading one lock-in for another. Their OAuth setup means you're now building integrations against a vendor you'll have even more trouble leaving later. The exit fees for data extraction alone are punitive.
Payroll predictability might improve, but the total cost won't. Factor in the mandatory "implementation partner" fees and the annual escalators buried in the contract. Those local tax validation hurdles? That's a feature, not a bug. It creates consultant dependency.
Think the grass is greener? Maybe. But the fence is higher and the water bill is hidden.