How To Fix REEXFM020 - Error during derivation of account assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: REEXFM - Messages for Integration with Funds Management

• Message number: 020

• Message text: Error during derivation of account assignment

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 REEXFM020 - Error during derivation of account assignment ?

  The SAP error message REEXFM020, which states "Error during derivation of account assignment," typically occurs in the context of financial transactions, particularly when the system is unable to derive the necessary account assignment information for a financial document. This can happen in various modules, including Financial Accounting (FI) and Controlling (CO).
  Causes of REEXFM020
  
  
  Missing Configuration: The account assignment derivation rules may not be properly configured in the system. This can include missing or incorrect settings in the account determination or derivation strategy.
  
  
  Incorrect Master Data: The master data (such as cost centers, profit centers, or internal orders) may be incomplete or incorrect, leading to issues during the derivation process.
  
  
  Inconsistent Data: There may be inconsistencies in the data being processed, such as missing values or incorrect combinations of account assignment elements.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access certain account assignment data, leading to errors during the derivation process.
  
  
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they may interfere with the standard derivation logic.
  
  
  Solutions to REEXFM020
  
  
  Check Configuration: Review the configuration settings for account assignment derivation in the relevant modules (FI/CO). Ensure that all necessary rules and mappings are correctly set up.
  
  
  Validate Master Data: Check the master data for completeness and correctness. Ensure that all required fields are filled and that the data is consistent.
  
  
  Analyze the Document: Look at the specific document that triggered the error. Check the account assignment fields and see if there are any missing or incorrect values.
  
  
  Review Authorizations: Ensure that the user has the necessary authorizations to access the required account assignment data.
  
  
  Debugging: If the issue persists, consider debugging the derivation process to identify where it fails. This may require technical expertise.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to account assignment derivation for additional insights and troubleshooting steps.
  
  
  Contact SAP Support: If the issue cannot be resolved internally, consider reaching out to SAP support for assistance, especially if it appears to be a bug or requires deeper technical analysis.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OBYC (for account determination) and KSV5 (for cost center accounting) to check configurations.
  SAP Notes: Search for SAP Notes related to REEXFM020 for any known issues or patches that may address the problem.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, providing insights or solutions from other users.
  
  By following these steps, you should be able to diagnose and resolve the REEXFM020 error effectively.