Diagnosis
You have indicated a tax card as primary card. It is necessary toindicate a daily as well as a period exemption for these tax cards.

System Response
The system issues a warning, pointing out what is probably a mistake.Since under certain circumstances it is actually possible for there tobe no period or daily exemption with a primary card, it is thereforestill possible to make an entry.

Procedure
Check if the employee actually has a primary card without period anddaily exemption.