Wizard Warning: W3008

Message

WARNING: Selecting a different Collection Mapping will delete all changes
you have made using the Schema to Object Mappings dialog.

Are you sure you want to change the Collection Mapping type?

Explanation

Once you have made changes to the Schema to Object mappings, you can no longer change details on previous Wizard pages without deleting the mappings.

Solution

Press 'Yes' to delete the mappings and set the Collection Mapping type, or press 'No' to keep the existing Collection Mappings.