Question on Invoice number sequence. Last invoice number I have is 35320 but wen I click new invoice, why do I get Invoice number 35219 ?

Hello, info18.

QuickBooks Online recognizes the last invoice number recorded. It's possible that a user created an invoice with a different invoice number. You can check it in the Audit Log report. Here's how:

1. Click the Gear icon.
2. Choose Audit Log. 

You can reset the invoice number counter to resolve this. When you create a new invoice, you'll have to manually enter the right number so the sequence will be corrected. 

Drop by anytime if ever you need help with QuickBooks Online. Have a nice day!