2607743 - 'Replication Failed for Remote Employee From System'; 'Custom Code Missing'

While performing an Employee master data replication from a legacy system you get the following error messages:

'Replication failed for remote employee ABC from system DEF.' (ABC represents the employee ID) (DEF represents the system code).

'Save failed.'

'Custom code XYZ missing.' (XYZ represents the custom code ID)

SAP Business ByDesign

Employee master data replication; custom code; benutzerspezifisches Code; Spesen; Expense; Account Assignment Types, Expense arrangement , KBA , SRD-FIN-ERM , Travel and Expense Management , Problem