Claude Code O365 MCP Conditional Access Setup Issues and Solutions
O365 MCP Connector Setup Under Conditional Access Policies
A developer documented two specific problems and solutions encountered while configuring Claude Code's O365 MCP connector in environments with conditional access policies.
Problem 1: Finding Applications in Conditional Access Rules
When attempting to allow the Claude MCP Server and Client in conditional access policy rules, searching for "MCP" or "Claude" returned no results. The applications must be located using their specific IDs instead of names.
- Claude MCP Server ID:
08ad6f98-a4f8-4635-bb8d-f1a3044760f0 - Claude MCP Client ID:
07c030f6-5743-41b7-ba00-0a6e85f37c17
Problem 2: Authentication Connection Error
The developer encountered the error: "Error connecting to the MCP server. Please confirm that you have permission to access the service, that you're using the correct credentials, and that your server handles auth correctly."
For organizations using location-based Conditional Access policies, the solution is to exclude the United States from these policies, as Claude servers connect from U.S. locations.
The developer noted this configuration process took four hours to resolve, highlighting the practical challenges of integrating Claude Code's O365 MCP connector in enterprise environments with strict security policies.
📖 Read the full source: r/ClaudeAI
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