Solution : https://service.sap.com/sap/support/notes/1036365 (SAP Service marketplace login required)
Key words :
invalid payroll area change, multiple period start days, payroll area change, payroll area mm, pay type 'c', personnel assignment nnnnnn, grouping &group& overlaps, setting time stamp, grouping overlap raise, payroll repetition run
Related Notes :
846636 | CE-MPSD: Function Multiple Period Start Days |