How To Fix B1144 - Message type & cannot be reduced

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 144

• Message text: Message type & cannot be reduced

What causes this issue?

There are different message types for different applications in the SAP
system. However, reduction is not possible for all message types
depending on their business function and technical aspects.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Choose a message type that allows reduction.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1144 - Message type & cannot be reduced ?

  The SAP error message B1144 ("Message type & cannot be reduced") typically occurs in the context of the SAP Business Workflow or when dealing with message types in the SAP system. This error indicates that there is an issue with the configuration of message types, particularly when trying to reduce or change the status of a message type that is not allowed to be reduced.
  Cause:
  
  Message Type Configuration: The message type you are trying to reduce may have been configured in such a way that it cannot be reduced. This could be due to settings in the message type configuration or workflow settings.
  Workflow Status: The workflow instance may be in a state that does not allow for the reduction of the message type.
  Business Logic: There may be business rules or logic that prevent the reduction of certain message types based on the current status or conditions.
  
  Solution:
  
  
  Check Message Type Configuration:
  
  Go to the transaction code SWU3 (Automatic Workflow Customizing) and check the configuration of the message type in question.
  Ensure that the message type is set up correctly and that it allows for the desired operations.
  
  
  
  Review Workflow Instances:
  
  Use transaction code SWI1 (Work Item Selection) to check the status of the workflow instances related to the message type.
  Ensure that the workflow is in a state that allows for the reduction of the message type.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to the specific message type and its allowed operations. This can provide insights into any restrictions or requirements.
  
  
  
  Custom Code Review:
  
  If there is custom code involved in the workflow or message processing, review it to ensure that it is not inadvertently causing the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They can provide more detailed insights based on your specific system configuration.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SWU3, SWI1, and SWI2 for workflow management.
  SAP Notes: Check for any SAP Notes related to the specific message type or error message. SAP Notes often contain fixes or workarounds for known issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to diagnose and resolve the B1144 error in your SAP system.