Agency Setup on ThumbnailTest.com

If you’re an agency, you’ll have to take a few extra steps to add certain YouTube channels to ThumbnailTest. This is because of how YouTube third-party access works - just because you’re a manager on a channel, doesn’t mean you’re able to login with that channel.

To add a channel normally:

Sign in to ThumbnailTest: https://app.thumbnailtest.com/
Click on the dropdown icon on the top left of the account profile and choose Team Settings from the options.



Towards the bottom of the page, click Connect More Channels button



Click the email associated with the YouTube channel you want to connect
Click the YouTube channel you want to connect
If you don’t see the channel, you need to use the next set of instructions to add the channel

To add a channel you can’t login as:

Sign in to ThumbnailTest: https://app.thumbnailtest.com/
Click Settings > Team Settings



Towards the top of the page, Check this box to mark your team as an agency



Towards the middle Right of the page, click “**Invite Member**”



Generate invite link

Select the appropriate role, since they'll be temporary the "Member" role should work. They won't need any access to channels unless you'd like them to view the results of tests.

Then click "*Generate One Time Link**"



Click “**Copy Link**”



Send this link to the original owner of the channel (Your Client)

Have the Client sign in to ThumbnailTest as the desired channel

Make sure the Client is on your team in the Team Member section



Have Client go to Team Settings



Have Client Click Connect More Channels



Have Client Click the email associated with the YouTube channel they want to connect

Have Client Click the YouTube channel they want to connect

If Client doesn’t see the channel, they need to make sure they’re logged in as the right account

Updated on: 26/02/2025