SAP Message 5G112 - Employee must have a valid & certificate for this NI category

Diagnosis
To qualify for NI categories 'B', 'E', or 'G', an employee must hold aCA4139 certificate. For NI category 'C', an employee must have a CA4140or a CA2700 certificate, and for NI category 'S' a CA2700 certificate.This employee does not hold a valid certificate.

Procedure
Either select the &V1& certificate indicator or change the NI category.