Resolving Power BI MCP OAuth Flow Failures: A Technical Guide to Resource-Scope Parameter Conflicts

Modern data analytics platforms increasingly rely on machine code plugins (MCPs) to extend functionality beyond native capabilities. When these integrations encounter authentication challenges—particularly OAuth flows—they can trigger AADSTS9010010 errors that disrupt workflows. This guide explains the root cause of common resource-scope parameter conflicts on the v2.0 endpoint and provides a systematic approach to resolution, leveraging the governance and platform engineering strengths of X-ITM CORE.

Understanding the Problem

Power BI MCPs (Machine Code Plugins) enable custom extensions that connect to data sources, perform transformations, and return results back to the Power BI environment. The OAuth flow is critical for authenticating these plugins and ensuring secure access to underlying resources. On the v2.0 endpoint, a frequent failure mode occurs when the resource parameter conflicts with the scope parameter in the authorization request. This mismatch causes the Azure Active Directory (AAD) service to reject the token, resulting in an AADSTS9010010 error that halts the plugin execution.

Root Cause Analysis

The core issue stems from how the OAuth token is constructed and validated against the target resource. In many implementations, developers map the resource field to represent the logical boundary of the data being accessed (e.g., a dataset, table, or collection), while simultaneously specifying scopes to define the permissions required. When these two parameters are configured inconsistently—typically by setting the resource to a value that does not align with the granted scopes—the authentication layer cannot validate the request properly. The v2.0 endpoint enforces strict alignment between these parameters, and any deviation triggers the rejection mechanism.

Step-by-Step Resolution Guide

1. Verify Endpoint Version Compatibility
   Before attempting fixes, confirm that your integration is targeting the correct endpoint version. The v2.0 endpoint introduced stricter parameter validation compared to earlier versions. Ensure your MCP configuration references the latest documented endpoint and that any SDK updates have been applied consistently across all components.
2. Audit Parameter Alignment
   Review the OAuth request payload for both resource and scope. The resource should correspond directly to the permission granted in the scoperesource should match the identifier used in the scope

3. Align Scope Declarations with Resource Boundaries
When defining scopes, use the minimum necessary permissions. Instead of requesting broad administrative scopes, limit them to the specific operations required by your MCP. This reduces the chance of conflicting mappings and ensures that the token issued by AAD matches what the backend expects.
4. Validate Token Generation
   After obtaining the access token via the OAuth flow, inspect its claims and expiration. Ensure the token includes the appropriate roles or permissions attributes that correspond to the intended resource. If the token lacks the expected roles, the downstream service will reject the request even if the initial OAuth handshake appears successful.
5. Test with Minimal Configuration
   Isolate the issue by temporarily simplifying the MCP configuration. Remove non-essential endpoints and reduce the number of scopes requested. This helps determine whether the problem is isolated to a particular combination of parameters or affects the entire integration.
6. Review Governance Policies
   X-ITM CORE provides built-in governance and policy enforcement tools that can help prevent such misconfigurations. By establishing clear rules around allowed scopes, resource boundaries, and token lifecycles, you can proactively catch potential conflicts before they reach production.