How To Fix E4026 - Target message class & exists already

E4026 - Overview

• Message type: E = Error

• Message class: E4 - Program maintenance functions within development system

• Message number: 026

• Message text: Target message class & exists already

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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E4026 - Details

• The SAP error message E4026 ("Target message class & exists already") typically occurs when you are trying to create a new message class in the SAP system, but a message class with the same name already exists. This can happen during the development of custom programs or enhancements when you are trying to define new messages for user interfaces or reports.
  
  Cause:
  
  The primary cause of this error is an attempt to create a message class that has the same name as an existing message class in the SAP system. Message classes are used to group messages for different applications, and each message class must have a unique identifier.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Message Classes:
  
  Use transaction code SE91 (Message Class Maintenance) to check if the message class you are trying to create already exists. Enter the name of the message class in the appropriate field and