Hello - We have a website on which we sell printed books. We are expanding to eBooks and need a way to connect a book order for an ebook to the company that fulfills the ebooks for us through an API. For ebooks our ecommerce system will need to provide an email or a
thank you page with a digitally signed link to the content that will allow users to download it (but only once.) I downloaded the download manager addon but it doesn't seem to have the functionality we need. The developer would need to work with me (the webmaster) to get this working. Please let me know how much time you would need to do this and an approximate cost. Thank you.
Sharon