If your customer requires a detailed breakdown with their sales invoice, which is sometimes the case, having the additional module Scanning will enable you to do this.
Apart from being able to email documents into your agreement to either process and link to entries or file, Scanning gives you the ability to link a document to the customers sales invoice and be emailed out together. All you have to do is save the document as a pdf and when you create the invoice for your customer you will see this:- in the centre part of your screen, click on the link, find your document and upload. Simply as that !
To find out more and how to activate Scanning click here
Have a great weekend !