Previous invoice?

I've got your back, @Holub885. Let me help you go back to your previous invoices in QuickBooks Online (QBO).

There are plenty of ways to locate your previously created invoices in QBO. The easiest one is to click the counter-clockwise icon on the top-left corner of the invoice window to see your most recently modified invoices. Simply click the +New button, then select Invoices to open the page. 

Another option is to utilize the Search function to locate your recorded transactions quickly. You can click Advanced Search if you can't find them from the list. Refer to this article for more details about this process: How to search for transactions in QuickBooks Online.

Additionally, you can check out this article to review the recorded sales transactions and their statuses in the Sales menu: View sales transactions.

Please let me know in the comment below if you have additional questions about managing your invoices or anything related to QuickBooks. I'll be here to assist. Have a good one!