[Bug] RetrieveAadUserRoles generated service fails — Edm.String cannot be converted to Edm.Guid

[stj-parmiras]

Describe the bug

The generated service for the RetrieveAadUserRoles function does not work properly. When passing it a valid Aad Object ID, it throws an error. The payload in the generated service may be malformed?

Steps to Reproduce

1. Add the function using: npx power-apps add-dataverse-api --api-name RetrieveAadUserRoles
2. Pass it your own hardcoded Aad Object ID

Expected behavior

Should return User roles as expected.

Actual behavior

Throws the following error:
"{"error":{"code":"0x80060888","message":"Expression of type 'Edm.String' cannot be converted to type 'Edm.Guid'."}}"

Screenshots or Error Messages

Environment information

@microsoft/power-apps@1.1.3

Additional context

[eschavez]

Thanks for reporting this! We've reproduced the root cause: the RetrieveAadUserRoles Dataverse action expects its SystemUserId parameter as Edm.Guid, but the generated service is serializing it as a plain string (Edm.String). This is a codegen bug — we're investigating the fix.

In the meantime, you can work around it by calling the OData endpoint directly with the GUID wrapped in the correct format:

// Workaround: call OData directly until the generated service is fixed
const response = await fetch(
  `/api/data/v9.2/RetrieveAadUserRoles(SystemUserId=)`,
  { headers: { 'OData-MaxVersion': '4.0', 'OData-Version': '4.0' } }
);

We'll update this issue when a fix is available. Thanks for the detailed report!