How To Fix DMEE351 - List of levels contains gaps or is not in ascending order

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 351

• Message text: List of levels contains gaps or is not in ascending order

What causes this issue?

The list of levels contains a gap, or the levels are not defined in
ascending order.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Define the levels in ascending order with no gaps. For a format tree
with three levels, for example, use levels 1, 2, and 3.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMEE351 - List of levels contains gaps or is not in ascending order ?

  The SAP error message DMEE351 indicates that there is an issue with the configuration of the Data Medium Exchange Engine (DMEE) in SAP. Specifically, this error occurs when the list of levels defined in the DMEE tree structure contains gaps or is not in ascending order. This can lead to problems when generating payment files or other data formats.
  Cause:
  
  Gaps in Levels: The levels defined in the DMEE tree structure may not be continuous. For example, if you have levels defined as 1, 2, 4, and 5, the absence of level 3 would trigger this error.
  Non-ascending Order: The levels must be defined in a strictly ascending order. If they are defined in a mixed order (e.g., 1, 3, 2), this will also cause the error.
  Incorrect Configuration: The DMEE tree might have been incorrectly configured, leading to inconsistencies in the level definitions.
  
  Solution:
  
  
  Check Level Definitions: Go to the DMEE configuration in SAP (transaction code DMEE) and review the levels defined in your DMEE tree. Ensure that:
  
  There are no gaps in the sequence of levels.
  The levels are in ascending order without any duplicates.
  
  
  
  Correct the Levels: If you find any gaps or incorrect order:
  
  Add missing levels to ensure continuity.
  Rearrange the levels to ensure they are in ascending order.
  
  
  
  Validate Configuration: After making changes, validate the DMEE tree configuration to ensure that the error is resolved. You can do this by using the "Check" function in the DMEE transaction.
  
  
  Test the Output: Once the configuration is corrected, generate the output file again to confirm that the error has been resolved.
  
  
  Related Information:
  
  Transaction Codes: Use transaction code DMEE to access the DMEE configuration.
  Documentation: Refer to SAP Help documentation for detailed information on configuring DMEE trees and understanding the structure of levels.
  Support: If the issue persists after making corrections, consider reaching out to SAP support or consulting with a technical expert familiar with DMEE configurations.
  
  By following these steps, you should be able to resolve the DMEE351 error and ensure that your DMEE configuration is correct.