How To Fix SMT_CONFIG391 - System does not allow customizing changes

SMT_CONFIG391 - Overview

• 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.

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

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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 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