Identify external Azure credential failure in post-release validation

[Copilot]

Post-release validation fails during Azure authentication, before any AML validation runs. The configured service principal is not registered in the tenant supplied by AZURE_CREDENTIALS.

• Root cause

  • azure/login returns AADSTS700016 for the configured application and tenant.

• Required remediation

  • Update the repository-managed AZURE_CREDENTIALS secret with a valid service-principal credential for tenant 0fbe7234-45ea-498b-b7e4-1a8b2d3be4d9.
  • No workflow source change is included: the workflow already forwards the credential secret correctly.

- uses: azure/login@cb79c773a3cfa27f31f25eb3f677781210c9ce3d
  with:
    creds: ${{ secrets.AZURE_CREDENTIALS }}