Prerequisites
You need a MongoDB deployment and a user with write access (insert, update, delete) on the target database and collections.Write Modes
Append
Inserts new documents. The collection is created if it does not exist.Replace
Replaces the entire collection on every sync. Drops and recreates or truncates and inserts.Upsert
Uses the specified field as the document identifier (_id or custom) for update operations. New documents are inserted; existing documents (matched by the key) are updated.
Upsert Configuration
When using upsert mode, specify which field to use as the document identifier. For MongoDB,_id is the default. You can use a custom field if your source data has a unique identifier.