How To Fix CNV_00001254 - Source table &1 equals target table &2. Self mapping is not supported

CNV_00001254 - Overview

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 254

• Message text: Source table &1 equals target table &2. Self mapping is not supported

Self-Explanatory Message

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CNV_00001254 - Details

• The SAP error message CNV_00001254 indicates that there is an issue with data mapping during a data migration or conversion process. Specifically, it suggests that the source table and the target table are the same, which means that the system is trying to map data from a table to itself. This is not supported in the context of the migration or conversion process.
  
  Cause:
  The primary cause of this error is that the data migration or conversion process is attempting to map a source table to the same table as the target. This can happen due to:
  
  Configuration Error: The mapping configuration may have been set incorrectly, leading to the same table being specified for both source and target.
  Data Migration Logic: The logic defined for the data migration might not be correctly distinguishing between source and target tables.
  Duplicate Entries: There may be an attempt to process data that is already present in the