SAP Message 5G256 - Earliest start date of absence could not be calculated

Diagnosis
Neither of the fields Earliest start date (from and to
) are filled. (For Statutory Maternity Pay, these fields are namedMPP start possible from).

Procedure
These two fields give the earliest and latest start dates of thestatutory absence. They are filled automatically by your SAP system,derived from dates already entered in the system.
Ensure all other relevant dates have been entered into the relevantinfotype SMP/SAP/SPP GB (0088) subtype screens.
For example, in the case of Statutory Paternity Pay (adoption), theearliest possible start date of paternity leave is autromatically setfrom the expected or actual date of birth entered manually into theinfotype screen.