How To Fix DMC_DTL249 - A formal parameter with the name &1 already exists

DMC_DTL249 - Overview

• Message type: E = Error

• Message class: DMC_DTL - Messages for DMC data transfer layer

• Message number: 249

• Message text: A formal parameter with the name &1 already exists

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 DMC_DTL249 - A formal parameter with the name &1 already exists ?

  The SAP error message DMC_DTL249 indicates that there is a conflict due to a formal parameter with the same name already existing in the context where you are trying to define a new parameter. This typically occurs in the context of Data Management and Data Transfer processes, such as when working with Data Migration Cockpit (DMC) or similar tools.
  
  Cause:
  
  Duplicate Parameter Name: The most common cause of this error is that you are trying to create or define a new parameter in a data transfer or migration process, but a parameter with the same name already exists in the same context.
  Incorrect Configuration: There may be a misconfiguration in the data model or mapping where parameters are defined.
  Copy-Paste Errors: If you are copying and pasting code or configurations, it’s possible to inadvertently create duplicate parameter names.
  
  
  Solution:
  
  Check Existing Parameters: Review the parameters that are already defined in your data transfer or migration configuration.