Thank you for joining the Community, user09110.
An option to restore a deleted invoice is currently unavailable in QuickBooks Online. But, we can utilize the Audit log feature to get the details of the deleted invoice and recreate it.
Here's how:
- Go to the Gear icon.
- Select Audit Log.
- In the Filter drop-down, choose the appropriate User, Date, and Events filter then click Apply.
- Locate the deleted transaction and then use the browser search by pressing Ctrl + F.
- Type in the keyword "deleted" to search.
- Under the History column, click View.
- All the information needed for the transaction can be found under the EVENT column.
For more info, visit this link: Use the audit log in QuickBooks Online.
Once you have the details, you can start restoring the invoice article by following this article: Create invoices in QuickBooks Online.
If you need anything else or have follow up questions, just leave a comment below. I'll be happy to help. Have a wonderful day!