Dear Bhavik Shah,
SAP provided the solution for the credit limit check from DBM 8.0 using the SAP FSCM credit management.
You can achieve the credit limit check after following configuration:
1. Need to Activate the BADI: ZUKM_R3_ACTIVATE
2. Activate the payment terms:
in the below menu path:
/dbm/spro > Order> SAP Credit Management (SAP Financial Supply Chain Management) > Activate Credit Limit Check for Payment Terms
Note:- I hope you have activated the web services if FSCM in same system or you have done SAP PI configuration.
such as creditworthnes etc..
I hope this will help you..
best regards
msu