How To Fix FMUP031 - Derivation rule defined incorrectly

SAP Error Message - Details

• Message type: E = Error

• Message class: FMUP - Update in Funds Management

• Message number: 031

• Message text: Derivation rule defined incorrectly

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FMUP031 - Derivation rule defined incorrectly ?

  The SAP error message FMUP031, which states "Derivation rule defined incorrectly," typically occurs in the context of the Funds Management (FM) module when there is an issue with the configuration of derivation rules used for budgetary control or fund allocation.
  Cause:
  
  Incorrect Configuration: The derivation rules may not be set up correctly in the system. This could involve incorrect field assignments, missing values, or improper logic in the derivation rules.
  Missing Master Data: The necessary master data that the derivation rules rely on may be missing or incorrectly maintained.
  Incompatible Data Types: The data types of the fields being used in the derivation rules may not match, leading to errors during processing.
  Logical Errors: There may be logical errors in the derivation rules that prevent them from being executed correctly.
  
  Solution:
  
  Review Derivation Rules: Go to the configuration settings for derivation rules in the Funds Management module. Check the rules for any inconsistencies or errors in the setup.
  
  Transaction Code: OBY6 (for derivation rules)
  
  
  Check Master Data: Ensure that all relevant master data (e.g., funds, cost centers, internal orders) is correctly maintained and available in the system.
  Validate Data Types: Ensure that the fields used in the derivation rules are compatible in terms of data types.
  Test Derivation Logic: If possible, test the derivation logic in a development or test environment to identify any logical errors.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on setting up derivation rules correctly.
  Seek Help from SAP Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who specializes in Funds Management.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FMAVCR01 (for budget availability control) and FMBB (for budget adjustments) to understand how derivation rules impact these processes.
  SAP Notes: Check for any SAP Notes related to FMUP031 for specific patches or updates that may address known issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, providing insights or solutions from other users' experiences.
  
  By following these steps, you should be able to identify and resolve the issue related to the FMUP031 error message in SAP.