How To Fix DA646 - & is not created in DB. External view &: Def. does not match DB.

SAP Error Message - Details

• Message type: E = Error

• Message class: DA - Dictionary: Compare, distribution, timer, instantiation

• Message number: 646

• Message text: & is not created in DB. External view &: Def. does not match DB.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DA646 - & is not created in DB. External view &: Def. does not match DB. ?

  The SAP error message DA646 typically indicates that there is a mismatch between the definition of an external view and the actual database structure. This can occur in various scenarios, particularly when dealing with database tables, views, or when changes have been made to the underlying database structure without corresponding updates to the external view definition.
  Cause:
  
  Schema Changes: The database schema has been altered (e.g., fields added, removed, or modified) without updating the external view definition in SAP.
  Transport Issues: Changes made in a development environment may not have been properly transported to the production environment, leading to inconsistencies.
  Incorrect Configuration: The external view may have been incorrectly defined or configured in the SAP system.
  Database Connection Issues: There may be issues with the database connection or the database itself that prevent the view from being created or accessed.
  
  Solution:
  
  Check External View Definition: Review the definition of the external view in SAP to ensure it matches the current database schema. You can do this by navigating to the relevant transaction (e.g., SE11 for Data Dictionary).
  Adjust the Database Schema: If the database schema has changed, you may need to adjust the external view definition to align with the new schema.
  Recreate the View: If the view is corrupted or not properly defined, consider dropping and recreating the external view.
  Transport Changes: Ensure that all necessary changes have been transported correctly from the development environment to the production environment.
  Check Database Connection: Verify that the database connection is functioning correctly and that there are no issues with the database server.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional guidance.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), or SE37 (Function Builder) to investigate and manage database objects.
  SAP Documentation: Refer to SAP Help documentation for detailed information on external views and database management.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.