Summary Checklist for Authentication
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Authorized Redirect URI: Verify that you copied the exact redirect URI from the Square Orb > Authentication tab into your Google Cloud and Adobe Developer consoles.
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Google Test Users (Critical): If your Google Cloud project’s OAuth Consent Screen is in “Testing” mode, ensure your Google email address is added under Test users.
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API Enablement: Confirm that the Photos Picker API (and optionally Cloud Vision API) is enabled in your Google Cloud Project, and that the Lightroom API is added to your Adobe project.
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Save Before Connecting: Always click Save Google Credentials or Save Adobe Credentials in WordPress before clicking the respective “Connect” button.
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Security Best Practices: Keep your Client Secret and Vision API Key strictly private. Never commit them to version control or share them publicly.
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Verification: Once connected, the engine box displays a green ”✓ Connection Persistent & Active” badge. If an error notice appears, verify your redirect URI and test user settings, then try connecting again.