EXIT_SAPMF02D_001 - Function Module
User Exit - SAPMF02D
The above User Exit is called during Create Customer (xd01) & Change Customer Mode.(XD02) as well as VD01, VD02
01. In Create Customer Mode (XD01 & VD01) SAP should check whether the fields are filled in ZZKV_CUSNO & ZZKV_SEQNO are filled in. The expected behaviour is that SAP should not allow to Save a customer master in case the above is not filled.
02. In Change Customer Mode (xd02 & vd02), User exit should first check whether the user has got an authorisation to change this field, only then allow to change.