How To Fix DMCLG120 - Change mode not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 120

• Message text: Change mode not permitted

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG120 - Change mode not permitted ?

  The SAP error message DMCLG120, which states "Change mode not permitted," typically occurs in the context of data management or data loading processes within SAP systems, particularly when dealing with Data Management or Data Warehousing components.
  Cause:
  The error usually arises due to one of the following reasons:
  
  Authorization Issues: The user may not have the necessary permissions to perform changes in the specified mode (e.g., change, delete, or update).
  Data Locking: The data or object you are trying to change may be locked by another user or process, preventing modifications.
  Incorrect Mode: The operation you are trying to perform is not allowed in the current mode of the application or transaction.
  Configuration Settings: Certain settings in the system configuration may restrict changes in specific scenarios or for certain users.
  
  Solution:
  To resolve the DMCLG120 error, you can try the following steps:
  
  
  Check Authorizations: Ensure that the user has the appropriate authorizations to perform the desired operation. You may need to consult with your SAP security team to verify and adjust user roles and permissions.
  
  
  Release Locks: If the data is locked, identify the user or process that is holding the lock and either wait for it to be released or ask the user to release it if possible. You can use transaction codes like SM12 to check for and manage locks.
  
  
  Verify Mode: Ensure that you are in the correct mode for the operation you are trying to perform. If you are in display mode, switch to change mode if necessary.
  
  
  Review Configuration: Check the configuration settings related to the data management process you are working with. There may be specific settings that restrict changes under certain conditions.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the transaction or process you are working with.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP support for further assistance, especially if it appears to be a system-level issue.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (for lock management), SU53 (to check authorization issues), and ST22 (for dumps).
  SAP Notes: Search for SAP Notes related to DMCLG120 for any known issues or patches that may address the problem.
  User 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 diagnose and resolve the DMCLG120 error in your SAP environment.