How To Fix LMBP108 - Function module and Transaction step are mutually excluded

SAP Error Message - Details

• Message type: E = Error

• Message class: LMBP -

• Message number: 108

• Message text: Function module and Transaction step are mutually excluded

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LMBP108 - Function module and Transaction step are mutually excluded ?

  The SAP error message LMBP108 indicates that there is a conflict between a function module and a transaction step in the context of a Business Process (BP) or a similar process in SAP. This error typically arises when a function module is being called in a context where it is not allowed due to the current transaction step or process state.
  Cause:
  
  Mutual Exclusion: The error suggests that the function module you are trying to execute is mutually exclusive with the current transaction step. This means that the function module cannot be executed in the current state of the transaction.
  Incorrect Configuration: There may be a configuration issue in the business process or workflow that is causing the function module to be called at an inappropriate time.
  Process Logic: The logic defined in the process may not allow for the execution of the function module at the current step, possibly due to business rules or conditions that have not been met.
  
  Solution:
  
  Check Transaction Flow: Review the transaction flow or process definition to ensure that the function module is being called at the correct step. Make sure that the function module is intended to be executed at that point in the process.
  Review Function Module Logic: Examine the logic within the function module to understand its requirements and constraints. Ensure that it is compatible with the current transaction state.
  Configuration Review: Check the configuration settings related to the business process or workflow. Ensure that there are no misconfigurations that could lead to this error.
  Debugging: If you have access to debugging tools, you can set breakpoints in the function module and the transaction to trace the execution flow and identify where the conflict arises.
  Consult Documentation: Refer to SAP documentation or notes related to the specific function module and transaction to understand any known issues or additional requirements.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide insights or patches if it is a known issue.
  
  Related Information:
  
  Transaction Codes: Identify the specific transaction code that is causing the error and check its documentation for any known issues or limitations.
  Function Module Documentation: Look up the function module in the SAP system to understand its purpose, parameters, and any restrictions on its use.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide guidance on similar issues.
  
  By following these steps, you should be able to diagnose and resolve the LMBP108 error in your SAP environment.