The Projects app now provides main account owners with the ability to disconnect a third-party integration for a client's sub-account.
Be aware that performing this action will disconnect the integration from your Projects app AND the sub-account's Analytics app.
Note - You cannot perform this action for the Listings Manager. To remove Listings, you will need to deactivate the subscription manually within your account settings. You can learn how to do this here.
How to Disconnect an Integration within Projects
Go to your Projects app.
Click on the sub-account in question from the left menu.
Click on the integration tab that you wish to disconnect.
Click on the red X in the top-right corner. When hovering over the button, it should read "Disconnect Integration."
Another menu will appear asking you to verify your decision. Once again, click Disconnect.
The integration will now disappear from both applications.
If you ever need to reconnect the integration for a sub-account, you can learn more about how to do so here.