Let me help you handle this concern, @tabletennisstore.
The error you received indicates that another user already connected the PayPal account at issue to your QuickBooks Online (QBO) account. Additionally, you can't connect both a parent account and its subaccounts simultaneously. Attempting to do so will result in a notification indicating that the account is already connected.
Here's what you need to do to avoid these types of errors when connecting your PayPal account:
- Ensure PayPal hasn't already been connected by another user.
- Confirm you are a master or company admin user in QuickBooks Online, as only admins or accountants can connect to the app.
- Verify the PayPal credentials belong to an admin user, not just an authorized user.
Moreover, If you are still unable to proceed, I encourage you to contact our support team for further guidance and to investigate the error you encountered.
Once you've successfully connected, check out this article for future reference in handling bank transactions: Categorize online bank transactions in QuickBooks Online.
Let us know if you have follow-up questions about connecting accounts in QBO. I'm always around to help you.