How To Fix >9315 - You can only define one customer function module for event &

>9315 - Overview

• Message type: E = Error

• Message class: >9 - Messages for TAS

• Message number: 315

• Message text: You can only define one customer function module for event &

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message >9315 - You can only define one customer function module for event & ?

  The SAP error message 9315 indicates that you are trying to define more than one customer function module for a specific event in the SAP system. This is a restriction in the SAP system to ensure that only one custom implementation is associated with a particular event.
  
  Cause:
  The error occurs when:
  
  You attempt to create or modify a customer function module for an event that already has an existing customer function module defined.
  There is a conflict in the configuration where multiple function modules are being defined for the same event.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Existing Function Modules:
  
  Go to the transaction code SE37 (Function Builder) or SE80 (Object Navigator).
  Search for the function module associated with the event you are trying to modify.
  Check if there is already a customer function module defined for that event.
  
  
  
  Modify or Delete Existing Function Module:
  
  If you find an existing customer function module that you do