Bicep Machine Learning Workspace Codes doesn't work

Question

Bicep Machine Learning Workspace Codes doesn't work

Guilherme Matheus 120 Microsoft Employee

I am getting error when trying to create or reference an existing Codes and there is not a single place or documentation that I found and tells this is not possible, so this must be a bug, since all the other services that has versions is working fine, such as: environments, models, etc. This is Bicep documentation for this service.

If I define this resource:

resource machineLearningWorkspaceCodes 'Microsoft.MachineLearningServices/workspaces/codes@2025-09-01' existing = {
    name: 'test'
    parent: mlWorkspace
}

I get this error:

Status: Failed Error: Code: UserError Message: CodeContainers_Get is not supported

If I do not use existing word, like this:

resource machineLearningWorkspaceCodes 'Microsoft.MachineLearningServices/workspaces/codes@2025-09-01' = {
    name: 'test'
    parent: mlWorkspace
    properties: {description: 'test', isArchived: false}
}

I get this error:

Status: Failed Error: Code: UserError Message: CodeContainers_CreateOrUpdate is not supported

Guilherme Matheus 120 Reputation points Microsoft Employee

2025-10-21T01:39:04.53+00:00

I have also posted this problem in: https://github.com/Azure/bicep-types-az/issues/2613

1 answer

Your answer

Guilherme Matheus 120 Reputation points Microsoft Employee

2025-10-21T01:39:04.53+00:00

I have also posted this problem in: https://github.com/Azure/bicep-types-az/issues/2613

Answer 1

Aryan Parashar 1,850 Microsoft External Staff Moderator

Hi Guilherme:
Yes Azure Machine Learning currently doesn’t support creating or updating code containers via ARM or Bicep templates.

The documentation exist, but the functionality isn’t implemented in practice.

I’ve tried this multiple times on my end, and each time it returns the error: CodeContainers_CreateOrUpdate is not supported

Also note that Azure Bicep operates as an abstraction layer over ARM and ARM templates.

You can share feedback on this issue here:
https://feedback.azure.com/d365community/

Alternatively, you can create an Azure support ticket here:
https://azure.microsoft.com/en-us/support/create-ticket

Feel free to accept this as an answer.
Thankyou for reaching out to The Microsoft QNA Portal.

Guilherme Matheus 120 Reputation points Microsoft Employee

2025-10-21T14:55:08.4633333+00:00
I am sorry, but I don't think this is true, because a GET function should be there at least.

Since I can indeed create a new code version using the link you provided Codes/Versions, but I cannot use one level above Codes only. For example, Microsoft shares this codeversion.bicep which works just fine.

So if I create a new code version, which is working on my end, I do not know if I update my script, that script will be updated in the version 1, since I cannot use Codes to get the next version and use it:

resource machineLearningWorkspaceCodes 'Microsoft.MachineLearningServices/workspaces/codes@2025-09-01' existing = { name: 'test' parent: mlWorkspace }

So, I am pretty sure this must be fixed, who can we send this to?

Aryan Parashar 1,850 Microsoft External Staff Moderator

Hi Guilherme,
Yes, for existing ones the code below will work:

@description('Existing Azure ML workspace')
resource cxpbcp 'Microsoft.MachineLearningServices/workspaces@2023-04-01' existing = {
  name: '<NAME>'
}

@description('Existing codes container under the workspace')
resource cxpCodes 'Microsoft.MachineLearningServices/workspaces/codes@2025-09-01' existing = {
  parent: <name>
  name: '<your-code-container>'
}

I've tested this on my end and it works.

Thankyou for reaching out to The Microsoft QNA Portal.

Guilherme Matheus 120 Reputation points Microsoft Employee

2025-10-22T12:05:41.9433333+00:00

Hi! Code above doesn't work on my end. I get the error I shared in this thread. Can you send screenshot of property nextVersion from cxpCodes? That way I can mark your answer as complete.

Share via

Bicep Machine Learning Workspace Codes doesn't work

1 answer

Your answer