How To Fix RSDD_ZA421 - Checks the fill level of the global dictionary

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD_ZA - Messages from TREX Aggregate Area

• Message number: 421

• Message text: Checks the fill level of the global dictionary

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD_ZA421 - Checks the fill level of the global dictionary ?

  The SAP error message RSDD_ZA421, which indicates a problem with the fill level of the global dictionary, typically occurs in the context of SAP BW (Business Warehouse) or SAP BW/4HANA. This error is related to the data modeling and the metadata management within the SAP BW system.
  Cause:
  The error message RSDD_ZA421 usually arises due to one of the following reasons:
  
  
  Inconsistent Metadata: The global dictionary may have inconsistencies or corruption in the metadata, which can happen due to system upgrades, data model changes, or manual interventions.
  
  
  Data Model Changes: If there have been recent changes to InfoObjects, InfoProviders, or other data models, it may lead to discrepancies in the global dictionary.
  
  
  Transport Issues: If objects were transported from one system to another (e.g., from development to production) and the transport did not complete successfully, it could lead to inconsistencies.
  
  
  Performance Issues: Sometimes, performance issues or system resource constraints can lead to problems in accessing the global dictionary.
  
  
  Solution:
  To resolve the RSDD_ZA421 error, you can follow these steps:
  
  
  Check for Inconsistencies:
  
  Use transaction code RSD1 to check the InfoObjects and ensure that they are correctly defined.
  Use transaction code RSA1 to check the data models and ensure that they are consistent.
  
  
  
  Rebuild the Global Dictionary:
  
  You can try to rebuild the global dictionary by using transaction code RSDG (Global Dictionary Maintenance) and selecting the option to rebuild or regenerate the dictionary.
  
  
  
  Check Transport Logs:
  
  If the issue arose after a transport, check the transport logs for any errors or warnings that might indicate what went wrong.
  
  
  
  Perform a Consistency Check:
  
  Use transaction RS_CHECK to perform a consistency check on the BW objects. This can help identify any inconsistencies that need to be addressed.
  
  
  
  Clear Buffer:
  
  Sometimes, clearing the BW buffer can help resolve issues related to data retrieval. You can do this using transaction RSADMIN and selecting the appropriate options to clear the buffer.
  
  
  
  System Restart:
  
  If the issue persists, consider restarting the SAP system, as this can sometimes resolve temporary issues related to system resources.
  
  
  
  Consult 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 can resolve the issue.
  
  
  
  Contact SAP Support:
  
  If none of the above solutions work, consider reaching out to SAP Support for further assistance. They can provide more specific guidance based on your system configuration and the context of the error.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1, RSD1, RSDG, and RSADMIN for managing and troubleshooting BW objects.
  SAP BW Documentation: Review the official SAP BW documentation for best practices in data modeling and metadata management.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the RSDD_ZA421 error effectively.