How To Fix SMT_CONFIG391 - System does not allow customizing changes

SAP Error Message - Details

• Message type: E = Error

• Message class: SMT_CONFIG - Configuration message class

• Message number: 391

• Message text: System does not allow customizing changes

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SMT_CONFIG391 - System does not allow customizing changes ?

  The SAP error message SMT_CONFIG391 ("System does not allow customizing changes") typically occurs when there are restrictions in place that prevent users from making changes to the customizing settings in the SAP system. This can happen for several reasons, and understanding the cause is essential for finding a solution.
  Causes:
  
  
  Authorization Issues: The user may not have the necessary authorizations to make changes to the customizing settings. This is often the most common cause.
  
  
  Transport Layer Restrictions: The system may be configured to restrict changes in certain transport layers, especially in production environments where changes are controlled.
  
  
  Client Settings: The client may be set to a mode that restricts changes, such as a production client (client 000) or a client that is locked for changes.
  
  
  Change Management Policies: The organization may have implemented change management policies that restrict certain types of changes to ensure system stability.
  
  
  System Lock: The system may be in a state where it is locked for changes due to ongoing transport activities or maintenance.
  
  
  Solutions:
  
  
  Check Authorizations: Ensure that the user has the necessary authorizations to make customizing changes. This can be done by checking the user's roles and authorizations in transaction SU01 or PFCG.
  
  
  Review Transport Layer Settings: If the changes are being made in a transport layer that is restricted, consider making the changes in a development environment and then transporting them to the appropriate environment.
  
  
  Client Configuration: Verify the client settings using transaction SCC4. If the client is set to "No Changes Allowed," you may need to switch to a different client or change the settings (if you have the necessary authorizations).
  
  
  Consult Change Management Policies: If your organization has a change management process, consult with the relevant team to understand the policies in place and how to proceed with the required changes.
  
  
  Check for System Locks: Use transaction SM12 to check for any locks that may be preventing changes. If there are locks, you may need to wait for them to be released or contact the relevant team to resolve the issue.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SU01 (User Maintenance), PFCG (Role Maintenance), SCC4 (Client Administration), and SM12 (Lock Entries).
  Documentation: Review SAP documentation and notes related to customizing and transport management for more detailed guidance.
  Change Management: Understand your organization's change management process to ensure compliance with policies and procedures.
  
  By following these steps, you should be able to identify the cause of the SMT_CONFIG391 error and implement the appropriate solution.