Go to the Sales module.
On the left pane, select Archive.
Under the Name field, search for the Quote, Invoice, or Purchase Order (in this example, it’s a Quote). Then hit search
Tick the checkbox beside the record you want to restore, then select Restore.
The data will now be restored, and you can view it again in the main listing.
Additional Tip:
If you’re not exactly sure which record to restore, simply click the Search button when you’re on the Archive page to display the full list of archived data.