How To Fix MCEX005 - Field & exists more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: MCEX - Extraction Interface LIS/BW

• Message number: 005

• Message text: Field & exists more than once

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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Smart SAP Assistant

• What is the cause and solution for SAP error message MCEX005 - Field & exists more than once ?

  The SAP error message MCEX005 ("Field & exists more than once") typically occurs in the context of SAP's Material Management (MM) or Logistics Information System (LIS) when there is an issue with the data structure or configuration in the system. This error indicates that a field that is expected to be unique is found multiple times in a data structure, which can lead to ambiguity in data processing.
  Causes:
  
  Duplicate Fields in Data Structure: The error often arises when a field is defined multiple times in a data structure or in the configuration of a report or query.
  Incorrect Customization: If custom fields or enhancements have been added to a standard report or data structure, it may lead to conflicts or duplications.
  Data Model Issues: Problems in the underlying data model, such as incorrect joins or relationships between tables, can also trigger this error.
  Configuration Errors: Misconfiguration in the settings of the InfoObject or InfoProvider in the BW (Business Warehouse) environment can lead to this issue.
  
  Solutions:
  
  Check Data Structure: Review the data structure or the configuration of the report/query to ensure that fields are not duplicated. This may involve checking the definitions in the Data Dictionary (SE11) or the relevant transaction codes.
  Adjust Custom Fields: If custom fields have been added, ensure that they are correctly defined and do not conflict with existing fields. You may need to remove or rename duplicate fields.
  Review InfoObjects: In BW, check the InfoObjects and InfoProviders to ensure that there are no duplicate fields defined. You may need to adjust the settings or remove duplicates.
  Debugging: If the issue persists, consider debugging the report or transaction to identify where the duplication is occurring. This may involve using transaction codes like SE80 or SE37 to analyze the program logic.
  Consult Documentation: Review SAP documentation or notes related to the specific module or transaction to see if there are known issues or patches available.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), SE37 (Function Module), and RSA1 (BW Administrator Workbench) can be useful for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message MCEX005.
  Community Forums: SAP Community and other forums can provide insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.