Diagnosis
You have attempted to perform a change of master data for this employee.However, the master data you wish to change was created for a previoustime period when this employee had a different tax reference from theone he or she has now.
This employee is now assigned to a different tax reference. For thisinfotype, you are not permitted to perform changes to master dataoriginating from a timeframe assigned to a previous tax reference.

System response
Processing is stopped.

What to do
Master data maintenance for this timeframe is not permitted.