For Azure Cosmos DB for MongoDB
Discovery, protection, and restore are not supported if the account is configured using the vCore cluster.
Backup and restore are not supported if the account is configured with a customized key.
NetBackup does not support Azure Cosmos DB for MongoDB version 3.2.
The option is not supported.
Rules for naming databases:
The length of the database names must be between 3 and 63 characters.
Database names support all characters except #, /, ?,&, <, >, =, }, $, {, ], [, ", ', ., \ .