How to access the feature for dynamic Unique indexing in cosmos Db for mongoDb service

Question

I am getting an error when migrating from the MongoDB Atlas to Cosmos DB for MongoDB service in my spring boot application which have large migration sequence written.
Error: Command failed with error 67 (CannotCreateIndex): 'Cannot create unique index when collection contains documents'
Its written as a limitation here: https://learn.microsoft.com/en-us/azure/cosmos-db/mongodb/indexing#limitations-1 that collection should be empty.

But here it states that feature is in preview: https://azure.microsoft.com/en-us/updates/public-preview-azure-cosmos-db-api-for-mongodb-unique-index-reindexing/

How can I access this feature as I am in urgent need for this one.

Answer 1

Hi ,

The above feature is in private preview, you can raise a support request to get it enabled.