How To Fix USMD2138 - Unable to switch to display mode

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD2 - Master Data: UI Modeling

• Message number: 138

• Message text: Unable to switch to display mode

What causes this issue?

You want to switch from change mode to display mode and save the
changes, but your master data is not yet assigned to a change request.
You have <ZH>not</> selected a change request in the <LS>Select Change
Request</> dialog box. The changes can only be saved if you assign a
change request.

System Response

The master data is still displayed in change mode. The changes could not
be saved.

How to fix this error?

If you want to save your changes, specify a change request when you
switch from change mode to display mode.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message USMD2138 - Unable to switch to display mode ?

  The SAP error message USMD2138, "Unable to switch to display mode," typically occurs in the context of the SAP Master Data Governance (MDG) application. This error can arise due to various reasons, and understanding the cause is essential for finding an appropriate solution.
  Causes:
  
  Authorization Issues: The user may not have the necessary authorizations to view the data in display mode.
  Data Locking: The data being accessed might be locked by another user or process, preventing the switch to display mode.
  Technical Issues: There could be underlying technical issues, such as problems with the database or application server.
  Configuration Issues: Incorrect configuration settings in the MDG system can lead to this error.
  Incomplete Data: If the data is incomplete or not properly set up, it may prevent the display mode from being activated.
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to access the data in display mode. This can be done by reviewing the user's roles and authorizations in the SAP system.
  Check Data Locks: Investigate if the data is locked by another user or process. You can use transaction codes like SM12 to check for locks and SM21 for system logs.
  Technical Troubleshooting: If the issue seems to be technical, check the system logs (transaction SLG1) for any errors or warnings that might provide more context. You may also want to check the database connection and server status.
  Review Configuration: Verify the configuration settings in the MDG system to ensure everything is set up correctly. This may involve checking the MDG customizing settings.
  Data Integrity: Ensure that the data being accessed is complete and correctly formatted. If there are missing fields or incorrect data types, it may prevent the display mode from being activated.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error. SAP Notes often provide patches or workarounds for known issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered the same issue and what solutions they found effective.
  Documentation: Review the official SAP documentation for Master Data Governance for any specific guidelines or troubleshooting steps related to display mode issues.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.