We can use the Audit Log to review the details of the deleted invoice, Achu.
Currently, QuickBooks Online does not offer a direct option to restore deleted invoices. However, you can use the Audit Log to retrieve the necessary details and manually create a new invoice.
Here's how:
- Navigate to the Gear icon, then Audit Log.

- Filter the Date Changed, User, or Events.
- Select the Events to Deleted/Voided transactions.

- To view all the necessary information, click on View in the History column.

After that, you can then create a new invoice with the matching details.
If you have any questions about invoices in QuickBooks, please use the Reply button in the comments below.