How To Fix FMBAS020 - *** Messages reserved for index handling class (CL_FMBAS_IDX)

SAP Error Message - Details

• Message type: E = Error

• Message class: FMBAS - FM applic. specific messages for Budgeting & AVC services

• Message number: 020

• Message text: *** Messages reserved for index handling class (CL_FMBAS_IDX)

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 FMBAS020 - *** Messages reserved for index handling class (CL_FMBAS_IDX) ?

  The SAP error message FMBAS020, which is related to the index handling class (CL_FMBAS_IDX), typically indicates an issue with the index management in the Financial Management (FM) module of SAP. This error can arise due to various reasons, such as inconsistencies in the database, issues with the configuration of the FM module, or problems with the underlying data.
  Cause:
  
  Index Inconsistencies: The error may occur if there are inconsistencies in the index tables that are used by the FM module.
  Data Issues: There may be issues with the data being processed, such as missing or incorrect entries.
  Configuration Problems: Incorrect configuration settings in the FM module can lead to this error.
  System Bugs: Occasionally, this error can be triggered by bugs in the SAP system or specific versions of the software.
  
  Solution:
  
  Check Index Consistency: Use transaction codes like SARA or SDBA to check and repair index inconsistencies. You may need to run the relevant programs to rebuild the indexes.
  Review Configuration: Ensure that the configuration settings for the FM module are correct. This includes checking the settings for budget management, commitment management, and other related areas.
  Data Validation: Validate the data being processed to ensure that there are no missing or incorrect entries. This may involve checking the relevant tables and entries in the FM module.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  Consult Documentation: Review the SAP documentation for the FM module to ensure that all settings and configurations are in line with best practices.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They can provide more specific guidance based on your system configuration and version.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FMAVCR01 (for budget checks) and FMBB (for budget transfers) that may help in diagnosing the issue.
  System Logs: Check the system logs (transaction code SM21) for any additional error messages or warnings that may provide more context about the issue.
  User Exits and BAdIs: If you have custom developments, review any user exits or BAdIs that may be affecting the index handling in the FM module.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the FMBAS020 error in your SAP system.