How To Fix XT191 - Message &1&2 does not exist

XT191 - Overview

• Message type: E = Error

• Message class: XT - Transport Management System

• Message number: 191

• Message text: Message &1&2 does not exist

What causes this issue?

An attempt was made to display a message that does not exist in this
system.

System Response

The message <LS>&V1&&V2&</> does not appear.

How to fix this error?

Call the TMS (transaction STMS) in system <LS>&V3&</> and then start
the Alert Viewer.

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.

XT191 - Details

• The SAP error message XT191, which states "Message &1&2 does not exist," typically indicates that the system is trying to reference a message that is not defined in the message class. This can occur in various scenarios, such as during the execution of a program, transaction, or when trying to display a message that has not been properly configured.
  Causes:
  
  Missing Message Definition: The message you are trying to access is not defined in the message class.
  Incorrect Message Class: The message class being referenced may be incorrect or not properly assigned.
  Transport Issues: If the message was recently added or modified, it may not have been transported correctly to the system you are working in.
  Custom Development: If the message is part of a custom development, it may not have been implemented correctly.
  
  Solutions:
  
  
  Check Message Class:
  
  Use transaction SE91 to check the message class and ensure that the message number exists.
  If the message does not exist,