How To Fix MC408 - Problems reading the joins from DD05P

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 408

• Message text: Problems reading the joins from DD05P

What causes this issue?

Internal error from function module DD_FORKEY_GET.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check whether the database view DD05P or the function module
DD_FORKEY_GET was changed.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC408 - Problems reading the joins from DD05P ?

  The SAP error message MC408, which states "Problems reading the joins from DD05P," typically occurs in the context of data extraction or reporting, particularly when dealing with the Data Dictionary (DD) tables. This error indicates that there is an issue with reading the join conditions defined in the DD05P table, which contains information about the joins between database tables.
  Causes of MC408 Error
  
  
  Missing or Inconsistent Data: The DD05P table may have missing entries or inconsistent data that prevents the system from correctly interpreting the join conditions.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access the DD05P table or the related data dictionary objects.
  
  
  Database Issues: There could be underlying database issues, such as corruption or misconfiguration, that affect the ability to read from the DD05P table.
  
  
  Transport Issues: If recent transports have been made, there may be inconsistencies in the data dictionary objects that were transported.
  
  
  System Configuration: Incorrect configuration settings in the SAP system can lead to issues with reading joins.
  
  
  Solutions to MC408 Error
  
  
  Check Data Consistency:
  
  Use transaction SE11 to check the DD05P table for any inconsistencies or missing entries. Ensure that the join conditions are correctly defined.
  
  
  
  Authorization Check:
  
  Verify that the user encountering the error has the necessary authorizations to access the DD05P table and related objects. You can check this using transaction SU53 or SUIM.
  
  
  
  Database Integrity Check:
  
  Perform a database integrity check to ensure that there are no underlying issues with the database. This may involve working with your database administrator.
  
  
  
  Transport Review:
  
  If the error occurred after a transport, review the transport logs to identify any issues that may have arisen during the transport process. You may need to re-import or adjust the transport.
  
  
  
  System Configuration Review:
  
  Review the system configuration settings related to data extraction and reporting. Ensure that all necessary settings are correctly configured.
  
  
  
  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.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the steps you have already taken.
  
  
  
  Related Information
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), SU53 (Authorization Check), ST22 (Dump Analysis).
  SAP Notes: Regularly check for updates or notes related to the MC408 error in the SAP Support Portal.
  Documentation: Review SAP documentation related to data extraction and reporting for best practices and troubleshooting steps.
  
  By following these steps, you should be able to diagnose and resolve the MC408 error effectively.