How To Fix CNV146 - Maintenance view & not reactivated. Reactivate it manually.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 146

• Message text: Maintenance view & not reactivated. Reactivate it manually.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV146 - Maintenance view & not reactivated. Reactivate it manually. ?

  The SAP error message "CNV146 Maintenance view & not reactivated. Reactivate it manually." typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a maintenance view (a type of database view in SAP) has not been reactivated after a change or update, and it needs to be manually reactivated to ensure that the data model is consistent and functional.
  Cause:
  
  Changes in Data Model: The maintenance view may have been modified or deleted, leading to inconsistencies.
  Transport Issues: If the maintenance view was transported from one system to another, it might not have been activated properly in the target system.
  System Upgrade: After an upgrade, certain views may require reactivation due to changes in the underlying data model.
  Development Changes: Changes made in the development environment may not have been properly reflected in the production environment.
  
  Solution:
  To resolve the error, you need to manually reactivate the maintenance view. Here are the steps to do so:
  
  
  Identify the Maintenance View: Check the error message for the specific name of the maintenance view that needs to be reactivated.
  
  
  Access the Data Dictionary:
  
  Go to transaction code SE11 (Data Dictionary).
  Enter the name of the maintenance view in the "View" field and click on "Display".
  
  
  
  Reactivate the View:
  
  If the view is not active, you will see an option to "Activate" it. Click on the "Activate" button.
  If there are any errors during activation, they will be displayed. You may need to resolve these issues before the view can be activated successfully.
  
  
  
  Check Dependencies: Ensure that any dependent objects (like tables or other views) are also active and correctly configured.
  
  
  Test the Functionality: After reactivation, test the functionality that relies on the maintenance view to ensure that everything is working as expected.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE14 (Database Utility), and SE80 (Object Navigator) for managing database objects.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific maintenance view or the migration process you are working with.
  Documentation: Review SAP documentation regarding data migration and maintenance views for best practices and troubleshooting tips.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis or development team for further assistance, as they may have additional insights or access to system logs that can help diagnose the problem.