How To Fix /EACC/DMM077 - DataSource &1 is being used more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: /EACC/DMM -

• Message number: 077

• Message text: DataSource &1 is being used more than once

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /EACC/DMM077 - DataSource &1 is being used more than once ?

  The SAP error message /EACC/DMM077 DataSource &1 is being used more than once typically occurs in the context of data extraction or data modeling, particularly when working with SAP Data Services or SAP BW (Business Warehouse). This error indicates that the specified DataSource is being referenced multiple times in a way that is not allowed.
  Cause:
  
  Multiple Usage: The DataSource is being used in multiple places (e.g., in multiple data flows, transformations, or data models) where it is expected to be unique.
  Configuration Issues: There may be a configuration issue in the data model or data flow that leads to the DataSource being referenced more than once.
  Incorrect Mapping: The DataSource might be incorrectly mapped in the data flow or transformation logic.
  
  Solution:
  
  Check DataSource Usage: Review the data model or data flow to identify where the DataSource is being used. Ensure that it is only referenced once in the context that is causing the error.
  Modify Data Flow: If the DataSource needs to be used in multiple places, consider creating a copy of the DataSource or restructuring the data flow to avoid multiple references.
  Review Transformations: Check any transformations or mappings that might be causing the DataSource to be referenced multiple times. Adjust them as necessary.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on how to handle DataSources in your version of SAP.
  Testing: After making changes, test the data flow or model to ensure that the error is resolved and that the data extraction or processing works as expected.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Version Specifics: Be aware that the behavior of DataSources can vary between different versions of SAP BW or Data Services, so ensure that you are looking at the correct version documentation.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.