SAP Message 3O099 - NP class &1 amount &2 should be not less than &3 amount &4

Diagnosis
You have set the labor type as Non Part-time for this employee, whileyou set the NP class as Part-time here.

Procedure
Make sure the NP class type is consistent with the labor type for thesame employee.
For more information, refer to SAP Note 1100616.