Does it matter which Google Account I use during the OAuth connection?

Yes — this is the most common source of confusion. You must use the Google Account that has owner-level access to the Brand Account, not just any account that can log into Studio. If you use a Manager's account, the tool receives a token tied to that account's narrower permissions.

Where can I see which apps have been connected to the channel?

At myaccount.google.com/permissions, signed into the Google Account that authorised the app. Connected apps are tied to the authorising account, not to the YouTube channel itself — so if a Manager connected a tool, only that Manager's Google Account can see or revoke it.

Is this specific to Brand Account channels?

On a personal-account channel, the owner and the YouTube account are the same Google Account, so there’s no gap between Studio access and ownership. That distinction only arises on Brand Account channels, where Studio roles and Brand Account ownership are separate layers.

What if our agency needs to connect tools as part of their work?

The owner should do the OAuth authorisation step themselves, or grant the agency temporary owner access specifically for the connection — then review and reduce access afterwards. Giving an agency full owner access long-term carries meaningful risk; see the governance guidance on working safely with agencies.

Why YouTube API access requires Owner

Third-party tools and YouTube's own API need more than a Studio role — they need you to authorise with an account that actually owns the channel.

When a scheduling tool, analytics dashboard, or automation script asks you to "connect your YouTube account", it is asking for OAuth authorisation — a permission grant from your Google Account to that app. On a Brand Account channel, whether the app can do what it promises depends entirely on which Google Account you use to authorise, and that account's role on the Brand Account.

If your situation is actually …

You want to understand why ownership matters for the channel overall → Why some YouTube features only work for Owners →
A third-party tool is failing to connect or showing errors → Third-party tool cannot connect →

How YouTube API access actually works

YouTube's API uses OAuth 2.0. When you connect an external tool, you are giving that tool permission to act on your behalf — using your Google Account's credentials, not a standalone app key. The tool can only do what your Google Account is authorised to do on the channel.

On a personal-account channel, the channel is the Google Account, so the person who connects the tool is implicitly the owner. There is no ambiguity.

On a Brand Account channel, the story is different. Your Studio role (Manager, Editor, Viewer) governs what you can do inside Studio. But the YouTube Data API resolves channel-management permissions against your Brand Account role — Owner or Manager — not your Studio role. Some API scopes, particularly those that write to channel settings, manage monetisation, or perform administrative actions, are only available to accounts with owner-level access to the Brand Account itself.

What breaks when a non-owner connects a tool

A Manager or Editor with Studio access can connect a third-party app and the OAuth flow will appear to succeed. The tool gains a token. But when it tries to call certain API methods — updating channel branding, accessing monetisation data, or performing bulk operations — the API returns a 403 Forbidden or "insufficientPermissions" error, because the authorising account doesn't have owner-level Brand Account rights.

This is why an agency or editor who has perfectly working Studio access may tell you their tool "can't connect properly". The Studio permissions and the API permissions are evaluated separately. Studio access is not sufficient for API owner-level scopes.

The connected-apps list lives at myaccount.google.com/permissions, under the Google Account that did the authorising — not in YouTube Studio. Only the account that granted access can review or revoke it. This is another reason that tool connections belong to the channel owner, not to contractors or editors.

Common questions

Studio access and API access are evaluated separately. A Manager can work in Studio, but YouTube's API checks Brand Account owner-level access for certain scopes. If the tool needs those scopes, connecting as a Manager will result in partial access or API errors — the OAuth flow completes, but restricted calls fail with a permissions error.

Delvia

Access issues are easier to prevent when roles, owners, and responsibilities are recorded clearly

Most access problems trace back to the same gap — no clear record of who has access, what role they hold, and what should happen when that changes. Delvia helps you keep that record so problems are visible before they become incidents.

Delvia is free on iPhone and Android. Keep a clear record of who has access to your accounts — and what to do when that changes — wherever you are.

Download on theApp Store GET IT ONGoogle Play