SmartCompaire does not connect live to SAP, Workday, Oracle, ADP or any other payroll or time system. There are no scheduled pulls, SFTP drop folders or customer API. Every piece of data comes in through the app as an uploaded spreadsheet or CSV, rows typed on screen, or rows pasted from a spreadsheet.
That is deliberate for migration testing. If a system can export pay results by employee and pay code, SmartCompaire can compare it, whether it is the legacy system you are leaving or the one you are moving to. It also means SmartCompaire never writes anything back to either system. It finds, grades and records differences; fixing them stays with your payroll team.
Each project records a source system and a target system with an ID for each. Those IDs label the template columns, so the two exports are easy to tell apart. The upload does not check which system a file came from, so load each export into the matching source or target step. Each organization can also set up which payroll and time systems are offered per country.