Does anyone else experience unsent invoices to customers just disappearing? How do I stop it if I don't want the invoice to be sent straight away??Thanks

Thanks for posting in the Community, dieselandmachine!

If the unsent invoices is not deleted on file, we should still be able to see them in QuickBooks. You can use the Advanced Search option to find the missing invoices.

1. Click on the Magnifying glass or the Search icon.
2. Click on Advanced search.
3. Select Invoices, and choose Customers.
4. Select the customer name, and click on Search.
5. Select also a Date Filter.

If the missing transaction is not showing, let's use the Audit Log to check what happened to the transaction. Here's how:

1. Click on the Gear Icon, and click on Audit Log.
2. From the Audit log, locate the missing invoice.
3. Click on View to see the history.

For reference you can also check this link to learn more about: Use the audit log in QuickBooks Online.

Post again in the Community if you have further concerns. The team is here to help you.