How To Fix MCEX028 - You have not changed the extraction structure

SAP Error Message - Details

• Message type: E = Error

• Message class: MCEX - Extraction Interface LIS/BW

• Message number: 028

• Message text: You have not changed the extraction structure

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 MCEX028 - You have not changed the extraction structure ?

  The SAP error message MCEX028 ("You have not changed the extraction structure") typically occurs in the context of SAP BW (Business Warehouse) when you are trying to activate or modify an extraction structure but have not made any changes to it. This message is a warning indicating that the system expects some modifications to be made before proceeding.
  Cause:
  
  No Changes Made: The most common cause of this error is that you are attempting to activate or save an extraction structure without making any changes to it. The system checks for modifications and if none are found, it raises this error.
  Incorrect Process: You might be following a process that requires changes to the extraction structure, but you are not aware of the necessary modifications.
  System Configuration: There may be a configuration issue or a misunderstanding of the extraction process in your BW system.
  
  Solution:
  
  Make Changes: To resolve this error, you need to make a change to the extraction structure. This could involve adding or removing fields, changing field properties, or modifying the structure in some way.
  Check for Required Changes: Review the requirements for the extraction structure you are working with. Ensure that you understand what modifications are necessary based on your data extraction needs.
  Re-activate the Structure: After making the necessary changes, try to activate the extraction structure again. This should resolve the error.
  Consult Documentation: If you are unsure about what changes to make, consult the SAP documentation or your BW team for guidance on the specific extraction structure you are working with.
  
  Related Information:
  
  Transaction Codes: You may be using transaction codes like RSA2 (for DataSource maintenance) or RSA3 (for testing DataSources) when encountering this error.
  SAP Notes: Check for any relevant SAP Notes that might address this error or provide additional context on the extraction structure you are working with.
  BW Data Modeling: Understanding the principles of data modeling in SAP BW can help you make informed changes to extraction structures.
  Support: If you continue to face issues, consider reaching out to your SAP support team or consulting with an SAP BW expert for assistance.
  
  By following these steps, you should be able to resolve the MCEX028 error and successfully work with your extraction structures in SAP BW.