Azure Open AI: Error when calling completions api with GPT4o-mini

Hello,

I am getting the following error when calling completions api with GPT4o-mini model.

{
    "error": {
        "code": "OperationNotSupported",
        "message": "The completion operation does not work with the specified model, gpt-4o-mini. Please choose different model and try again. You can learn more about which models can be used with each operation here: https://go.microsoft.com/fwlink/?linkid=2197993."
    }
} 

If I use an older model like GPT3.5, I get no errors.

The endpoint I am using is similar to https://dev-swedencentral-openai.openai.azure.com/openai/deployments/dev-gpt-4o-mini/completions?api-version=2024-04-01-preview

I saw that at https://learn.microsoft.com/en-us/azure/ai-services/openai/overview,

it says that GPT4o-mini is already supported.

Can you help to solve this error?

Thanks