US employers with Mexico operations often run UKG Pro as the system of record and a local platform for Mexican payroll. A professional employer organization replaced manual dual entry between the two with a CloudApper two-way sync for hires, terminations, pay changes and org updates, cutting cross-border payroll errors.
More US employers now run part of their workforce in Mexico, whether it is a plant in Nuevo León, a shared service center in Guadalajara or a client operation managed through a professional employer organization. HR leadership usually wants one system of record for people data. Mexico payroll, though, runs on a local platform built for local obligations such as IMSS social security contributions and CFDI payroll receipts. That leaves two systems describing the same employees, and someone has to keep them in agreement.
For a professional employer organization managing a cross-border workforce, that someone was a person doing dual entry. The PEO used UKG Pro HCM as its US system of record and a separate Mexico payroll platform for employees paid in Mexico, with no native connector between them. CloudApper replaced that manual bridge with an automated two-way sync.
Why Two Payroll Systems Drift Apart
Cross-border payroll rarely fails on the big events. It fails on small changes that land in one system and not the other. A promotion entered in UKG Pro but not in the Mexico platform. A termination processed locally that never reaches the US record. A cost center change that leaves reporting split between two versions of the organization chart. Each one is minor until payroll runs on stale data, a pattern any team that has worked through payroll integration problems between UKG and a second payroll platform will recognize.
According to the Director of Client Services at the PEO, “Every pay change had to be keyed twice, and we only found the ones that were missed when an employee asked why their pay looked wrong.”
Manual reconciliation also made the PEO’s service harder to scale. Every new client with Mexico-based employees added more records to keep aligned by hand.

A Two-Way Sync Built on UKG Pro
CloudApper implemented its UKG Sync middleware through CloudApper iPaaS for UKG to automate bidirectional employee data synchronization between UKG Pro HCM and the Mexico payroll platform. New hires, terminations, pay changes and organizational updates now move between the two systems automatically, close to real time.
“UKG Pro stays our system of record, and the Mexico platform still does the local payroll work it is built for. CloudApper keeps the two honest with each other.”
HRIS Manager, professional employer organization
The design choice matters. Neither system is asked to do the other’s job. UKG Pro remains the source of truth for people data, and the local platform handles Mexican payroll requirements. The integration layer carries changes in both directions, the same principle behind keeping an ERP approval hierarchy aligned with UKG.
“A pay change entered on Monday is in both systems on Monday. That used to take a week and a reminder email.”
Payroll Manager, Mexico operations, professional employer organization
What Changed for the PEO and Its Clients
Manual dual entry between the US and Mexico systems is gone. Payroll errors for the cross-border workforce dropped because both platforms now work from the same employee data. Client service teams spend their time on client questions instead of record matching, and adding a client with Mexico-based employees no longer means adding reconciliation work.

“Our clients see one workforce now, even though it is paid in two countries.”
VP of Operations, professional employer organization
The Takeaway for Employers With Mexico Operations
Multi-country payroll will keep relying on local platforms, because local rules require them. The question for HRIS and IT leaders is how those platforms stay aligned with UKG. Exporting reports and rekeying them works at small scale, as many teams learn when consolidating multi-country payroll reporting. Past that point, the answer is a sync layer that treats UKG as the system of record and moves every change both ways. That is what CloudApper builds for UKG customers operating across borders.
If your US and Mexico payroll systems still depend on someone keying changes twice, talk to CloudApper about connecting them to UKG Pro with an automated two-way sync.




