How To Fix LRM391 - Customer-specific setting &1 already exists

LRM391 - Overview

• Message type: E = Error

• Message class: LRM - Customizing

• Message number: 391

• Message text: Customer-specific setting &1 already exists

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 LRM391 - Customer-specific setting &1 already exists ?

  The SAP error message LRM391, which states "Customer-specific setting &1 already exists," typically occurs when you are trying to create or modify a customer-specific setting in the SAP system, but a setting with the same identifier already exists. This can happen in various contexts, such as customizing settings, configuration tables, or user-specific settings.
  
  Cause:
  
  Duplicate Entry: The most common cause is that there is already an entry in the system with the same key or identifier that you are trying to create.
  Incorrect Configuration: You might be trying to configure a setting that is not allowed to have multiple entries.
  Transport Issues: If you are working in a development environment and have transported changes to a different environment, there might be conflicts with existing settings.
  
  
  Solution:
  
  
  Check Existing Settings: 
  
  Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the relevant table for existing entries. Look for the specific identifier mentioned in the