How To Fix DMEE029 - You cannot compare the same trees

SAP Error Message - Details

• Message type: E = Error

• Message class: DMEE - Messages for Data Medium Exchange Engine

• Message number: 029

• Message text: You cannot compare the same trees

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMEE029 - You cannot compare the same trees ?

  The SAP error message DMEE029 ("You cannot compare the same trees") typically occurs in the context of the Data Medium Exchange Engine (DMEE) when you are trying to compare two trees that are identical or the same. This error is often encountered during the configuration or execution of DMEE formats, particularly when defining or testing the output formats for electronic payments or other data exports.
  Cause:
  The error arises when the system detects that the two trees being compared in a DMEE format are the same. This can happen in scenarios such as:
  
  You are trying to validate or test a DMEE format where the source and target trees are identical.
  There may be a configuration mistake where the same tree is referenced multiple times in a comparison operation.
  
  Solution:
  To resolve the DMEE029 error, you can take the following steps:
  
  
  Check Tree References: Review the DMEE format configuration to ensure that you are not inadvertently comparing the same tree. Make sure that the source and target trees in your comparison logic are distinct.
  
  
  Modify the Comparison Logic: If you are using a comparison function in your DMEE format, ensure that the trees being compared are different. You may need to adjust the logic to compare different trees or remove the comparison if it is not necessary.
  
  
  Test with Different Trees: If you are testing the format, try using different trees for the comparison to see if the error persists.
  
  
  Review DMEE Configuration: Go through the entire DMEE configuration to ensure that all tree definitions and references are set up correctly and that there are no duplicate references.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for additional guidance on configuring DMEE formats and understanding tree comparisons.
  
  
  Seek Help from SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide insights specific to your configuration or version of SAP.
  
  
  Related Information:
  
  DMEE Configuration: Familiarize yourself with the DMEE configuration process, including how to create and manage trees, nodes, and formats.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates related to DMEE functionality.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the DMEE029 error and implement a solution to resolve it.