To ensure that a migration collection is complete and that any package definitions that are created from the collection are valid, validate the migration collection. The results of the validation include any orphan records or duplicate records, and any related configurations that you might need to add to the collection.
Orphan records are configurations that were deleted after the migration collection was created.
Duplicate records are configurations that were added to a migration collection, deleted and recreated in the originating application, and then added again to the migration collection. This sequence results in two records that refer to the same configuration.
You can inspect the related configurations to determine whether they can be deleted or need to be added to the collection.
Validations cannot be canceled and must run until they finish. You can perform other tasks during that time.