Happy to have you here in the Community, @FTP1. Let me share some insights regarding sales transactions with PayPal and QuickBooks Online (QBO).

Syncing sales transactions to QBO will only map to one income account. I also suggest you reach out to the PayPal customer support team regarding this option. You can find their contact details through their respective websites.

If you connect to PayPal through banking, you have the option to split these transactions for better tracking.

Let me show you how:

1. Go to the For Review tab.
2. Select the downloaded transaction to expand the view.
3. If the option in the Action column is Match, change the Find match to Categorize.
4. Select Split next to the Add button.

This opens the Split transaction window.

1. Select the Categories (the accounts) you want to split the transaction into.
2. Enter an amount for each split.
3. Select a Customer for each split.
4. When you're done, select Apply and accept.

For future reference, you can check out this article on how to modify settings for sync with PayPal.

Let me know if you need further assistance with banking transaction. The Community always has your back. Have a great day!