SAP Message RP305 - Sickness certificate authorization must be "01"

Diagnosis
You have entered an authorization number for sickness certificates inthe AuthNo. field.
The value 01 (Reference sickness certificate) has not beenentered in the Authorization field. A sickness certificate canonly be created for this family member in infotype Sicknesscertificates A (0056) if this walue is entered.

Procedure
If a family member is to receive sickness certificate authorization,you must enter the value 01 in the Authorization field.