How To Fix CNV_DMC_MC058 - Field name '&' not unique

CNV_DMC_MC058 - Overview

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 058

• Message text: Field name '&' not unique

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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CNV_DMC_MC058 - Details

• The SAP error message CNV_DMC_MC058, which states "Field name '&' not unique," typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there is a conflict with field names in the data being processed, where the system has encountered multiple fields with the same name, leading to ambiguity.
  
  Cause:
  
  Duplicate Field Names: The most common cause of this error is that the data source contains multiple fields with the same name. This can happen if the source system has been poorly designed or if there are multiple tables or structures that have overlapping field names.
  Mapping Issues: During the mapping process, if the same field is mapped to multiple target fields or if there are inconsistencies in the mapping definitions, this error can arise.
  Configuration Errors: Incorrect configuration in the migration settings or templates can lead to this issue, especially