How To Fix MDG_HDB_SEARCH026 - No access class implemented for reuse entity &1; cannot generate views

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_HDB_SEARCH -

• Message number: 026

• Message text: No access class implemented for reuse entity &1; cannot generate views

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_HDB_SEARCH026 - No access class implemented for reuse entity &1; cannot generate views ?

  The SAP error message MDG_HDB_SEARCH026 indicates that there is no access class implemented for a reuse entity in the Master Data Governance (MDG) system, which prevents the generation of views. This error typically arises in the context of SAP HANA database views when the system is trying to create or access a view for a specific entity but cannot find the necessary access class.
  Cause:
  
  Missing Access Class: The primary cause of this error is that the required access class for the specified reuse entity (denoted by &1 in the error message) has not been implemented or is not available in the system.
  Configuration Issues: There may be configuration issues in the MDG setup that prevent the system from recognizing the access class.
  Transport Issues: If the access class was recently transported from another system, it may not have been properly activated or may be missing in the target system.
  
  Solution:
  
  
  Implement Access Class: 
  
  Check if the access class for the specified reuse entity exists. If it does not, you will need to implement it. This typically involves creating a new access class in the ABAP Dictionary (SE11) and ensuring it is correctly defined for the reuse entity.
  If you are not familiar with how to implement an access class, consult the SAP documentation or work with a developer who has experience in this area.
  
  
  
  Check Configuration:
  
  Verify the configuration settings in the MDG system to ensure that the reuse entity is correctly defined and linked to the appropriate access class.
  Use transaction MDGIMG to navigate to the relevant configuration settings and check for any inconsistencies.
  
  
  
  Transport and Activation:
  
  If the access class was recently transported, ensure that it has been activated in the target system. You can check this in transaction SE11 or SE80.
  If necessary, re-transport the access class or manually create it in the target system.
  
  
  
  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 that resolve known issues related to access classes and reuse entities.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the process to identify where the system is failing to find the access class. This may require technical expertise in ABAP and the MDG framework.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP Help documentation for Master Data Governance for detailed information on access classes and reuse entities.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and MDGIMG (MDG Implementation Guide) for troubleshooting.
  
  By following these steps, you should be able to resolve the MDG_HDB_SEARCH026 error and successfully generate the required views for your reuse entity.