Provide the Password associated with the above user.
Select the Cleanup policy. This policy allows you to select a way to clean up data in the target database when you activate, reactivate or reload the transfer:
Don't cleanup: Select this option if you only perform replication without copying data.
Drop: Fully delete the collections included in the transfer (default). Use this option to always transfer the latest version of the schema to the target database from the source.
Truncate: Execute the remove() command for a target collection each time you run a transfer.
Check the Sanitize the documents keys box. It cleans the JSON keys in the indexed documents by removing invalid characters, leading/trailing whitespaces, and leading/trailing dots.