How To Fix RJ304 - Internal errors when reading table & from the DDIC

SAP Error Message - Details

• Message type: E = Error

• Message class: RJ - BW Extractor Handling Message Class

• Message number: 304

• Message text: Internal errors when reading table & from the DDIC

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 RJ304 - Internal errors when reading table & from the DDIC ?

  The SAP error message RJ304, which indicates "Internal errors when reading table & from the DDIC," typically arises when there are issues related to the Data Dictionary (DDIC) in SAP. This error can occur for various reasons, including inconsistencies in the database, issues with the transport system, or problems with the data dictionary itself.
  Causes:
  
  Database Inconsistencies: There may be inconsistencies between the database and the data dictionary, which can lead to errors when trying to read table definitions.
  Transport Issues: If there were recent transports that did not complete successfully, it could lead to missing or corrupted objects in the DDIC.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain tables or objects in the DDIC.
  Corrupted Data Dictionary Objects: If the data dictionary objects are corrupted, it can lead to internal errors when trying to access them.
  System Bugs: There may be bugs in the SAP system that cause this error under specific conditions.
  
  Solutions:
  
  Check Database Consistency: Use transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility) to check the consistency of the database and the data dictionary. You can also run the program RSDBA_CHECK to check for inconsistencies.
  Transport Management: If the error occurred after a transport, check the transport logs for any errors. You may need to re-import the transport or correct any issues found.
  Authorization Check: Ensure that the user has the necessary authorizations to access the table in question. You can check this using transaction SU53 or SUIM.
  Repair Data Dictionary Objects: If you suspect that the data dictionary objects are corrupted, you may need to repair them. This can sometimes be done using transaction SE11 or by using the program RS_DDIC_REPAIR.
  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 the issue.
  System Restart: In some cases, a simple restart of the SAP system can resolve temporary issues.
  Contact SAP Support: If the issue persists after trying the above solutions, it may be necessary to contact SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SU53 (Authorization Check), SUIM (User Information System).
  SAP Notes: Always check for relevant SAP Notes that may provide specific guidance or patches related to the RJ304 error.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and potentially resolve the RJ304 error in your SAP system.