How To Fix /UI2/PAGEBUILDER021 - Default RFC destination not maintained in table "/UI2/MERGE_CAT"

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/PAGEBUILDER -

• Message number: 021

• Message text: Default RFC destination not maintained in table "/UI2/MERGE_CAT"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/PAGEBUILDER021 - Default RFC destination not maintained in table "/UI2/MERGE_CAT" ?

  The SAP error message /UI2/PAGEBUILDER021 indicates that the default RFC destination is not maintained in the table /UI2/MERGE_CAT. This error typically occurs in the context of SAP Fiori applications or when using the SAP UI5 framework, where the system is unable to find the necessary configuration for the RFC destination required to fetch data or perform operations.
  Cause:
  
  Missing Configuration: The default RFC destination required for the application is not set up in the /UI2/MERGE_CAT table.
  Transport Issues: If the system was recently upgraded or transported, the necessary configurations might not have been included.
  Authorization Issues: The user may not have the necessary authorizations to access the required RFC destination.
  System Configuration: The system might not be properly configured to connect to the backend services.
  
  Solution:
  
  
  Maintain RFC Destination:
  
  Go to transaction code SE11 (Data Dictionary) and enter the table name /UI2/MERGE_CAT.
  Check if the default RFC destination is maintained. If not, you will need to add the appropriate entry.
  You can also use transaction SM59 to check the RFC destinations and ensure that the required destination is correctly configured.
  
  
  
  Check Configuration:
  
  Ensure that the necessary configurations for the Fiori application are in place. This may include checking the SAP Gateway settings and ensuring that the OData services are activated.
  Use transaction IWFND/MAINT_SERVICE to check if the OData services are properly registered and active.
  
  
  
  Authorization Check:
  
  Verify that the user has the necessary authorizations to access the RFC destination and the related services. This can be done by checking the user roles and authorizations.
  
  
  
  System Logs:
  
  Check the system logs (transaction SLG1) for any additional error messages that might provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes or the official SAP documentation for any specific instructions related to the error message. You can search for the error message in the SAP Support Portal for more detailed guidance.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SE11: Data Dictionary
  SM59: RFC Destinations
  IWFND/MAINT_SERVICE: OData Service Maintenance
  SLG1: Application Log
  
  
  
  SAP Notes: Search for relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  By following these steps, you should be able to resolve the error message /UI2/PAGEBUILDER021 and ensure that the default RFC destination is properly maintained in the system.