How To Fix B1105 - Message type & exists already

B1105 - Overview

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 105

• Message text: Message type & exists already

What causes this issue?

You have tried to create a message type that exists already.

How to fix this error?

Choose the Change function for this message type.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1105 - Message type & exists already ?

  The SAP error message B1105 ("Message type & exists already") typically occurs when you are trying to create a new message type in the SAP system, but a message type with the same identifier already exists. This can happen in various contexts, such as when configuring message types for output processing in modules like Sales and Distribution (SD) or Materials Management (MM).
  
  Cause:
  
  Duplicate Entry: The most common cause is that the message type you are trying to create already exists in the system.
  Configuration Error: There may be a configuration error where the system is not recognizing the uniqueness of the message type due to incorrect settings or data inconsistencies.
  Transport Issues: If you are transporting configurations from one system to another, there might be conflicts with existing message types.
  
  
  Solution:
  
  
  Check Existing Message Types:
  
  Go to the relevant configuration transaction (e.g., NACE for output types).
  Check the list of existing message types to see if the