Below is a listing of all the supported transactions and lists that can be deleted from QuickBooks Online:
 

• Accounts
• Bills
• Bill Payments
• Credit Memos
• Customers
• Deposits
• Estimates
• Expenses
• Invoices
• Items
• Journal Entries
• Purchased Order
• Receive Payments
• Refund Receipts
• Sales Receipts
• Time Activities
• Vendors
• Vendors Credits

*Note: Transactions that were importing via Bank Feeds are not able to be deleted using Transaction Pro Deleter.