Diagnosis
There is no data associated with the IJSS maternity modifier valid forthe absence start date.

System Response
If this data is not available, the system is not able to identify thereference (gross or net salary) used to calculate the IJSS andapplicable compensation rate.

Procedure
Check the settings of table T5F21 "IJSS calculation method ",particularly with regard to the association between IJSS modifier andvalidity period.