InvalidModelProviderData when deploying Claude Sonnet 4.5 on Azure AI Foundry - UI missing required fields

Hello @Muskan Vohra,

Thanks for the detailed information and for validating the prerequisites.

Based on your description, you’re encountering two issues during deployment of Claude Sonnet 4.5, and they are likely related to the same underlying onboarding flow.

Issue 1 – Portal UI (Missing required fields)

The organizationName and countryCode fields are not rendering

As a result, “Agree and Proceed” remains disabled

What to check:

Clear browser cache or try Incognito/InPrivate mode, then refresh (Ctrl + F5)

Try a different browser

Ensure your user has:

• Contributor/Owner role on the Foundry project
• Cognitive Services OpenAI Contributor role on the resource group

Confirm you are using a supported region e.g., East US 2, Sweden Central

If the fields are still missing after this, it indicates a portal-side UI issue.

Issue 2 – REST API failure (AnthropicOrganizationCreationFailed)

The API request is accepted but fails server-side with:

AnthropicOrganizationCreationFailed Internal Server Error

This typically means the backend Anthropic organization provisioning step is failing.

What to validate:

Use latest API version:

• 2025-04-01-preview

Ensure your request payload includes required properties:

{
  "location": "eastus2",
  "skuName": "claude-sonnet-4-5",
  "properties": {
    "modelId": "claude-sonnet-4-5",
    "organizationName": "<your-org-name>",
    "countryCode": "US"
  }
}

Verify identity permissions:

• Managed identity / service principal has Cognitive Services OpenAI Contributor on:
  • Foundry resource
  • Resource group

Check Activity Log in the Azure portal:

• Look for failed operations or denied actions
• Capture correlation/request IDs if present

Please refer this

Deploy and use Claude models in Microsoft Foundry (preview) – how-to/use-foundry-models-claude https://learn.microsoft.com/azure/foundry/foundry-models/how-to/use-foundry-models-claude

Common deployment issues in Azure AI Foundry Portal – troubleshoot-deploy-and-monitor https://learn.microsoft.com/azure/ai-foundry/how-to/troubleshoot-deploy-and-monitor

Manage Azure AI Foundry quota – how-to/quota https://learn.microsoft.com/azure/ai-foundry/openai/how-to/quota?tabs=rest

Azure roles for OpenAI – role-based-access-control/built-in-roles https://learn.microsoft.com/azure/role-based-access-control/built-in-roles#cognitive-services-openai-contributor

I Hope this helps. Do let me know if you have any further queries.

Thank you!