https://userapps.support.sap.com/sap/support/knowledge/en/2706489
2706489 - Replacement of credit master data fields (table KNKK, KNKA, T024B, T024P and T691B) in...
SAP Credit Management (FSCM) is used and replacement is required for KNKK, KNKA, T024B, T024P, T691B table fields that are relevant in case of FSCM.
https://userapps.support.sap.com/sap/support/knowledge/en/3028011
3028011 - Replacement of credit master data fields (table KNKK, fields REVDB, DTREV, SBGRP, DBEKR)...
SAP Credit Management (FSCM) has been activated and replacements are required for fields KNKK-REVDB, KNKK-DTREV, KNKK-SBGRP, KNKK-DBEKR.