How To Fix KK053 - The keys of the source and target tables are the same

KK053 - Overview

• Message type: E = Error

• Message class: KK -

• Message number: 053

• Message text: The keys of the source and target tables are the same

What causes this issue?

While copying unit cost estimates, the system found that the key of the
source table is the same as the key of the target table.

System Response

Processing was terminated.

How to fix this error?

Notify your system administrator.

Error message extract from SAP system. Copyright SAP SE.

KK053 - Details

• The SAP error message KK053 ("The keys of the source and target tables are the same") typically occurs during the process of transferring or copying data between two tables in SAP, particularly in the context of controlling (CO) or financial (FI) modules. This error indicates that the system has detected that the keys (primary identifiers) of both the source and target tables are identical, which can lead to conflicts or data integrity issues.
  
  Cause:
  
  Identical Keys: The most common cause of this error is that the source and target tables are configured to use the same key fields. When the system attempts to perform an operation that requires unique keys, it cannot proceed because it would result in duplicate entries.
  Incorrect Configuration: There may be a misconfiguration in the data transfer settings or in the way the tables are defined in the system.
  Data Migration Issues: If you are migrating data from one system