How To Fix DMU026 - Select a line

SAP Error Message - Details

• Message type: E = Error

• Message class: DMU - Digital Mock Up (DMU)

• Message number: 026

• Message text: Select a line

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMU026 - Select a line ?

  The SAP error message DMU026 ("Select a line") typically occurs in the context of the Data Migration Workbench or during data migration activities in SAP. This error indicates that the user has attempted to perform an action that requires a specific line or entry to be selected, but no line has been selected.
  Cause:
  
  No Selection Made: The user has not selected any line in the list or table where the action is being performed.
  Incorrect Navigation: The user may have navigated to a function that requires a selection but did not make one.
  User Interface Issue: Sometimes, the user interface may not respond as expected, leading to the impression that a line is selected when it is not.
  
  Solution:
  
  Select a Line: Ensure that you click on a specific line or entry in the list before attempting to perform the action that triggered the error.
  Check for Filters: If you are using filters, ensure that they are set correctly and that there are visible entries to select.
  Refresh the Screen: If the interface seems unresponsive, try refreshing the screen or navigating away and back to the relevant section.
  Review User Permissions: Ensure that you have the necessary permissions to perform the action on the selected line.
  Consult Documentation: If the issue persists, refer to SAP documentation or help resources for further guidance on the specific transaction or function you are using.
  
  Related Information:
  
  Transaction Codes: This error may occur in various transaction codes related to data migration, such as LSMW (Legacy System Migration Workbench) or other data upload tools.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific version of SAP you are using.
  User Training: Ensure that users are trained on how to properly select entries in the SAP interface to avoid this error in the future.
  
  If the problem continues after trying the above solutions, it may be beneficial to contact your SAP support team for further assistance.