How To Fix TU299 - INTERNAL: Funcion module &1; backgr. mode is only supported when creating

TU299 - Overview

• Message type: E = Error

• Message class: TU - Billing/Scheduling/Budget Billing

• Message number: 299

• Message text: INTERNAL: Funcion module &1; backgr. mode is only supported when creating

Self-Explanatory Message

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TU299 - Details

• The SAP error message TU299 indicates an issue related to the use of a function module in background processing. Specifically, it suggests that the function module you are trying to execute is not compatible with background processing unless it is being used for creation purposes.
  
  Cause:
  The error typically arises when:
  
  You are trying to execute a function module that is designed to be run in foreground mode, but you are attempting to run it in background mode.
  The function module is not designed to handle background processing for the specific operation you are trying to perform (e.g., updating or changing records instead of creating them).
  
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Check Function Module Documentation: Review the documentation for the function module you are using to confirm whether it supports background processing and under what conditions.
  
  
  Use Foreground Processing: If the function module is not designed for background processing, you may need to run