How To Fix /PM0/ABX_MESSAGES156 - No function module is assigned to business transaction ID '&1'

/PM0/ABX_MESSAGES156 - Overview

• Message type: E = Error

• Message class: /PM0/ABX_MESSAGES -

• Message number: 156

• Message text: No function module is assigned to business transaction ID '&1'

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 /PM0/ABX_MESSAGES156 - No function module is assigned to business transaction ID '&1' ?

  The SAP error message /PM0/ABX_MESSAGES156 No function module is assigned to business transaction ID '&1' typically indicates that there is a missing configuration for a specific business transaction ID in the system. This error arises when the system attempts to process a business transaction but cannot find the corresponding function module that should handle it.
  
  Cause:
  
  Missing Configuration: The business transaction ID referenced in the error message does not have an associated function module defined in the system.
  Incorrect Business Transaction ID: The business transaction ID being used may be incorrect or not properly defined in the system.
  Custom Development: If the business transaction is part of a custom development, the function module may not have been created or properly linked.
  
  
  Solution:
  
  
  Check Configuration:
  
  Go to the relevant configuration settings in SAP where business transaction IDs are defined. This is usually found in the customizing settings for the specific module you are working with (e.g., PM, MM,