Mass update of Credit Group Field

All- Please we request counsel connected the champion attack to update the Credit field(Credit Group) successful S/4 HANA below.  Any assistance you tin connection volition beryllium greatly appreciated. We person tried the pursuing wide update transaction, but nary of it works for the Credit Group

Transactions

UKM_MASSDATA_UPDATE

UKM_MASS_UPD1 for Mass Change to External Credit Info.
UKM_MASS_UPD2 for Mass Change to Score

UKM_MASS_UPD3 for Mass Change to Credit Limit
UKM_MASS_UPD4 for Mass Change to Check Rule
UKM_MASS_UPD5 for Assigning UKM000 Role

Thanks,