UKM_REPAIR_INCONSISTENT_MAP is program that can be executed to identify and repair inconsistency in key mapping table in SAP MDG. as you know Key Mapping framework in SAP MDG is very important for synchronizing data across different systems by mapping different object IDs for the same real entity.
.Example: we have a business partner in SAP system that could have one id, while same business partner in external system Like Microsoft Dynamic has a different id. Key mapping links these different id’s together, to make sure that update on one source system is replicated successfully to the target system without any key mapping issue.
we have situation during Upgrade or if we have any data replication issue, in this case some time inconsistencies can arise in key mapping and that can lead to the error or replication failure.
The program/ report UKM_REPAIR_INCONSISTENT_MAP is designed to identify and fix these specific data discrepancies within the key mapping tables to make sure integrity and enabling smooth master data management processes.
How to Execute the Report “UKM_REPAIR_INCONSISTENT_MAP” in SAP S4Hana
Step1: Login to SAP System and enter the transaction code SE38.

Step2: enter the program name UKM_REPAIR_INCONSISTENT_MAP in the prgram screen

click on execute


Once execution completed it will show the successful result of the object with Ok. which means if any inconsistency found by system will be fixed by this program.
Hope provided key details will help you1