How To Fix RSM400 - *** Update rules - reserved to 499

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM -

• Message number: 400

• Message text: *** Update rules - reserved to 499

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM400 - *** Update rules - reserved to 499 ?

  The SAP error message "RSM400 *** Update rules - reserved to 499" typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the update rules in the data flow. This error indicates that the system is trying to access an update rule that is not valid or is reserved for internal use.
  Cause:
  
  Update Rule Numbering: In SAP BW, update rules are assigned numbers. The system reserves certain numbers (typically 0-499) for internal use, and if a user tries to create or access an update rule with a number in this range, it will trigger this error.
  Configuration Issues: There may be a misconfiguration in the data flow or the update rules that leads to this error.
  Data Source Issues: If the data source is not properly configured or if there are issues with the data extraction process, it can lead to this error.
  
  Solution:
  
  Check Update Rule Numbers: Ensure that the update rules you are trying to create or access do not fall within the reserved range (0-499). Use numbers above 499 for custom update rules.
  Review Configuration: Go through the configuration of your data flow, including the data source, transformation, and update rules, to ensure everything is set up correctly.
  Recreate Update Rules: If you suspect that the update rules are corrupted or incorrectly configured, consider deleting and recreating them with valid numbers.
  Check for Notes and Patches: Sometimes, SAP releases notes or patches that address specific issues. Check the SAP Support Portal for any relevant notes related to this error.
  Consult Documentation: Refer to the SAP BW documentation for guidance on update rules and best practices for configuration.
  
  Related Information:
  
  SAP Notes: Look for SAP Notes related to update rules and error RSM400 for any specific fixes or recommendations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) and RSMO (Monitor Process Chains) to help diagnose and resolve issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.