Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 612
Message text: There are specific maintenance views for following source packages
The blended package provides separate maintenance views for maintaining
the relevant org. units for the specified source packages.
Do not maintain the relevant org. units for the specified source
packages using the maintenance view of the org. package, but use the
specific maintenance views for the specified source packages.
&HINTS&
If a source package number occurs in the list of the source
package-specific maintenance views as well as the list for using the
maintenance views of the org. packages, only part of the target
determination object types can be maintained in the source
package-specific maintenance view.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_10020612 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This specific error indicates that there are specific maintenance views required for certain source packages that are not available or not properly configured.
Cause: Missing Maintenance Views: The error suggests that the required maintenance views for the specified source packages are not available in the system. This can happen if the necessary configuration or data structures have not been set up correctly. Incorrect Source Package: The source package being used may not be compatible with the target system or may not have the required views defined. Data Migration Cockpit Configuration: If the Data Migration Cockpit is not properly configured or if the migration objects are not correctly defined, this error can occur.
Solution: Check Configuration: Ensure that the necessary maintenance views for the source packages are correctly configured in
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