When an invoice is at the pro-forma / estimate stage the enquiry can be retained and processed at a later time.
With the customer chosen and the requested parts within the parts list at the required prices, pressing ‘Exit’ will give the option to retain the enquiry.
Selecting ‘No’ will exit the invoice.
Selecting ‘Yes’ gives the option to record a reference.
A reference can be recorded along with a date required.
Parts > Sales > Retained Enquiries
Retained enquiries can be searched using the various fields at the top of the screen.
After the required enquiry has been found, double clicking will reload the invoice screen with all the customer and part information including any discount previously agreed, ready for invoicing.
Retained enquiries can also be deleted by placing a 
into the delete column next to the enquiry to be deleted, selecting ‘Delete’ will delete the selected enquiries.