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Custom models on Copilot Chat from Azure are not using Entra ID #339055
Description
Description
When configuring BYOK to Copilot Chat models list, using Microsoft Foundry models, I'm willing to use Entra ID to authenticate against the model. But seems the inference engine is trying to use some type of key instead.
When configuring the provider, it explicitely says: leave key empty to use Entra ID.
Issue Details
| Item | Value |
|---|---|
| Issue Category | Bug |
| Target | Visual Studio Code |
| VS Code Version | Code 1.139.1 (04c0d99, 2026-09-25T03:40:57Z) |
| OS Version | Windows_NT x64 10.0.26200 |
System Info
| Item | Value |
|---|---|
| VS Code Version | Code 1.139.1 (04c0d99, 2026-09-25T03:40:57Z) |
| OS Version | Windows_NT x64 10.0.26200 |
| CPUs | 13th Gen Intel(R) Core(TM) i7-13800H (20 x 2918) |
| GPU Status | 2d_canvas: enabled GPU0: VENDOR= 0x8086, DEVICE=0xa7a0 [Intel(R) Iris(R) Xe Graphics], DRIVER_VENDOR=Intel, DRIVER_VERSION=32.0.101.6737 ACTIVE GPU1: VENDOR= 0x10de, DEVICE=0x28a1 [NVIDIA GeForce RTX 4050 Laptop GPU], DRIVER_VERSION=32.0.15.9155 GPU2: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.9278 Machine model name: Machine model version: direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off trees_in_viz: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgpu: enabled webnn: disabled_off |
| Load (avg) | |
| Memory (System) | 31.83GB (4.64GB free) |
| Process Argv | . --crash-reporter-id c624d3cf-760a-42e1-9117-0715a8e35211 |
| Screen Reader | no |
| VM | 0% |
| User Agent | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Code/1.139.1 Chrome/150.0.7871.250 Electron/43.6.0 Safari/537.36 |
| Installation pure | true |
Extensions (40)
| Name | Identifier | Author | Version |
|---|---|---|---|
| Markdown Preview Mermaid Support | bierner.markdown-mermaid | bierner | 1.32.1 |
| Docker DX | docker.docker | docker | 0.18.0 |
| REST Client | humao.rest-client | humao | 0.25.1 |
| Azure Load Testing | ms-azure-load-testing.microsoft-testing | ms-azure-load-testing | 0.2.0 |
| Azure Developer CLI | ms-azuretools.azure-dev | ms-azuretools | 0.10.0 |
| GitHub Copilot for Azure | ms-azuretools.vscode-azure-github-copilot | ms-azuretools | 1.0.236 |
| Azure MCP Server | ms-azuretools.vscode-azure-mcp-server | ms-azuretools | 2.0.46 |
| Azure App Service | ms-azuretools.vscode-azureappservice | ms-azuretools | 0.27.0 |
| Azure Container Apps | ms-azuretools.vscode-azurecontainerapps | ms-azuretools | 0.11.2 |
| Azure Functions | ms-azuretools.vscode-azurefunctions | ms-azuretools | 1.22.2 |
| Azure Resources | ms-azuretools.vscode-azureresourcegroups | ms-azuretools | 0.13.2 |
| Azure Static Web Apps | ms-azuretools.vscode-azurestaticwebapps | ms-azuretools | 0.13.3 |
| Azure Storage | ms-azuretools.vscode-azurestorage | ms-azuretools | 0.17.2 |
| Azure Virtual Machines | ms-azuretools.vscode-azurevirtualmachines | ms-azuretools | 0.6.11 |
| Bicep | ms-azuretools.vscode-bicep | ms-azuretools | 0.47.16 |
| Container Tools | ms-azuretools.vscode-containers | ms-azuretools | 2.5.2 |
| Azure Cosmos DB | ms-azuretools.vscode-cosmosdb | ms-azuretools | 0.36.2 |
| Docker | ms-azuretools.vscode-docker | ms-azuretools | 2.0.0 |
| C# Dev Kit | ms-dotnettools.csdevkit | ms-dotnettools | 3.40.210 |
| C# | ms-dotnettools.csharp | ms-dotnettools | 2.160.4 |
| GitHub Copilot upgrade | ms-dotnettools.upgrade-agent | ms-dotnettools | 1.1.612 |
| .NET Install Tool | ms-dotnettools.vscode-dotnet-runtime | ms-dotnettools | 3.2.0 |
| Python Debugger | ms-python.debugpy | ms-python | 2026.6.0 |
| Python | ms-python.python | ms-python | 2026.6.0 |
| Pylance | ms-python.vscode-pylance | ms-python | 2026.4.1 |
| Python Environments | ms-python.vscode-python-envs | ms-python | 1.38.0 |
| Jupyter | ms-toolsai.jupyter | ms-toolsai | 2025.9.1 |
| Jupyter Keymap | ms-toolsai.jupyter-keymap | ms-toolsai | 1.1.2 |
| Jupyter Notebook Renderers | ms-toolsai.jupyter-renderers | ms-toolsai | 1.3.0 |
| Jupyter Cell Tags | ms-toolsai.vscode-jupyter-cell-tags | ms-toolsai | 0.1.9 |
| Jupyter Slide Show | ms-toolsai.vscode-jupyter-slideshow | ms-toolsai | 0.1.6 |
| Dev Containers | ms-vscode-remote.remote-containers | ms-vscode-remote | 0.469.0 |
| WSL | ms-vscode-remote.remote-wsl | ms-vscode-remote | 0.104.3 |
| Chat Customizations Evaluations | ms-vscode.vscode-chat-customizations-evaluations | ms-vscode | 1.0.9 |
| Azure Tools | ms-vscode.vscode-node-azure-pack | ms-vscode | 1.8.2 |
| Foundry Toolkit for VS Code | ms-windows-ai-studio.windows-ai-studio | ms-windows-ai-studio | 1.6.15 |
| Material Icon Theme | pkief.material-icon-theme | PKief | 5.38.1 |
| YAML | redhat.vscode-yaml | redhat | 1.24.0 |
| Microsoft 365 Agents Toolkit | teamsdevapp.ms-teams-vscode-extension | TeamsDevApp | 6.16.0 |
| GitHub Copilot modernization | vscjava.migrate-java-to-azure | vscjava | 1.24.0 |
Theme extensions: 10
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vsliv368:30146709
binariesv615:30325510
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ahp-both-windows:31556933
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aw-autom-on:31583758
revealsession_control_7ed7e840:31582193
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vsc_wsm_c:1340633
g03gg798:1417072
cfee5631:1379228
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sem_714gi995:1401462
chat-subagents-default-to-auto-control:1416917
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