Solution : https://service.sap.com/sap/support/notes/595010 (SAP Service marketplace login required)
Key words :
work center/basic pay, work center basic pay, source code corrections contained, work tax area reason, work tax area, apznr split assignment, apznr split links, hr support package, mid-period wpbp, retroactive master data
Related Notes :
676675 | RTR: Mid-period WPBP split causes retro-difference |