Unable to Create MongoDB User in Azure Cosmos DB for MongoDB vCore

Question

Unable to Create MongoDB User in Azure Cosmos DB for MongoDB vCore

Jonathan Allbritten 0

Per title, I cannot create secondary native users in vCore mongo cluster.

EastUS region and M10 tier.

No UI exists (as mentioned in answer https://learn.microsoft.com/en-us/answers/questions/5513331/unable-to-create-mongodb-user-in-azure-cosmos-db-f).

No ability to create users via CLI tools (similar errors reported to those other users mentioned).

Official documentation/blog says that this entered general availability in July:

https://azure.microsoft.com/en-us/updates?id=470102

Which is supported by documentation here:

https://learn.microsoft.com/en-us/azure/cosmos-db/mongodb/vcore/compatibility?source=recommendations

And here

https://learn.microsoft.com/en-us/azure/cosmos-db/mongodb/vcore/secondary-users

Which all point to secondary user creation being supported via the mongosh cli and is the recommended path. No documentation points to UI for users (I assume this is a preview feature).

Is MSFT documentation out of sync with the current state of this feature? What is the exact criteria for user management?

Kalyani Kondavaradala 405 Reputation points Microsoft External Staff Moderator

2025-08-11T07:02:57.2133333+00:00

Hello Jonathan Allbritten,

Greetings for the day!

Just checking in to see if the below answer provided by @Vinodh247 helped.

If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

Thanks,

Kalyani
Jonathan Allbritten 0 Reputation points

2025-08-11T14:08:13.7833333+00:00

@Kalyani Kondavaradala

The current answer doesn't satisfy the question because it seems to be a guess just agreeing with me based on the provided info.

I need an official statement (preferably with a correction to the documentation). I'm debating escalating to paid support.

1 answer

Your answer

Kalyani Kondavaradala 405 Reputation points Microsoft External Staff Moderator

2025-08-11T07:02:57.2133333+00:00

Hello Jonathan Allbritten,

Greetings for the day!

Just checking in to see if the below answer provided by @Vinodh247 helped.

If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

Thanks,

Kalyani
Jonathan Allbritten 0 Reputation points

2025-08-11T14:08:13.7833333+00:00

@Kalyani Kondavaradala

The current answer doesn't satisfy the question because it seems to be a guess just agreeing with me based on the provided info.

I need an official statement (preferably with a correction to the documentation). I'm debating escalating to paid support.

Answer 1

Vinodh247 36,031 MVP Volunteer Moderator

Hi ,

Yes, you might be right. The ms doc is out of sync with the current implementation. While the feature is marked as generally available, until the CLI and mongosh commands truly work, portal UI remains the only reliable path to create secondary MongoDB users in CosmosDB vCore.

Feature Limitations & Preview Notes:

The UI based user management is still considered in a preview state and is subject to limitations:

Max 100 users/roles per cluster

updateuser only allows password changes

roleinfo isn’t supported (use usersInfo instead)

Roles must be assigned cluster wide (no per/db granularity)

This preview nature likely explains why CLI and mongosh support remain non functional or disabled despite documentation implying otherwise.

Jonathan Allbritten 0 Reputation points

2025-08-11T22:40:12.1033333+00:00

How would we grant sculpted access than? The UI feature isn't even available as a preview feature for our tenant Additionally, how do I find the appropriate channel to get the documentation updated? As-is this is highly misleading. Especially given they did a GA broadcast to announce this feature

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Unable to Create MongoDB User in Azure Cosmos DB for MongoDB vCore

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