You can have one and more than one MongoDB Atlas Cluster linked to your Realm Application.

To link a MongoDB Atlas Cluster to an existing Realm Application:


1. Click "Linked Data Sources" in the left-hand navigation of your Realm Application.


2. Click "Link a Data Source" and provide the configuration information before "Save". See Link a MongoDB Data Source for more information.

To unlink a MongoDB Atlas Cluster from an existing Realm Application:


1. Click "Linked Data Sources" in the left-hand navigation of your Realm Application.


2. Click the ellipsis (...) at the entry of the Realm service (which indicates which data source e.g. Atlas cluster you are using) you wish to delete and select "Unlink Data Source".

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