How To Fix COM_DIFF_KEY013 - Field name & exists more than once in the external key fields

COM_DIFF_KEY013 - Overview

• Message type: E = Error

• Message class: COM_DIFF_KEY - Messages for Differentiation Key

• Message number: 013

• Message text: Field name & exists more than once in the external key fields

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message COM_DIFF_KEY013 - Field name & exists more than once in the external key fields ?

  The SAP error message COM_DIFF_KEY013 indicates that there is a problem with the external key fields in a configuration or data entry process. Specifically, it means that a field name is duplicated in the external key fields, which is not allowed. This can occur in various contexts, such as when working with master data, configuration settings, or during data uploads.
  
  Cause:
  The error is typically caused by one of the following:
  
  Duplicate Field Names: The same field name is defined more than once in the external key fields of a configuration or data structure.
  Incorrect Data Mapping: When mapping data from an external source, the mapping may inadvertently include the same field multiple times.
  
  Configuration Issues: In some cases, the configuration of the data model or the structure of the external key fields may not be set up correctly.
  
  
  Solution:
  To resolve the COM_DIFF_KEY013 error, you can take the following steps:
  
  
  Check External Key Fields:
  
  Review the configuration or