You can migrate data from a user-created MongoDB database to an ApsaraDB for MongoDB instance. You must take note of the limits of ApsaraDB for MongoDB, as shown in the following table.
|Data version and storage engine||For more information, see Data versions and storage engines.|
|Public IP address||Access to an instance through a public IP address may incur security risks. No public IP address is configured when an instance is created. If you need to access a MongoDB database from the Internet, you can Apply for a public IP address.|
|Create an instance||
|Restart an instance||You can only restart instances from the ApsaraDB for MongoDB console or through the API.|
|Back up data||Automatic backups must use the physical backup method. You can select the physical or logical backup method to Manually back up ApsaraDB for MongoDB data.|
|Restore data||If you want to restore data, you must Create an instance based on a time point.|