Paypal IPN – How to Sell Digital Downloads

How to Sell Downloadable Products with Paypal IPN

Note: Paypal has redesigned its layout recently so my videos are now not quite right. Sorry!

I’ve been experimenting with Paypal IPN for some time now and I’ve had in the back of my mind that I wanted to put all the different Paypal tutorials I’d written together into one big explanation of what you need to do to sell downloadable products. When I tried this I realised there is just too much information for one tutorial.
So I’ve created a series. And despite my frog like voice I have decided to give video tutorials a go.


I’m not going to explain how to write your own IPN code from scratch. It’s just too difficult. Commercially available scripts have mostly been around long enough to iron out the bugs, to add on new features and create spin off scripts that do other related tasks. They also have established support systems to help with any problems you might encounter.

The one I recommend is Linklok from Vibralogix. (This is an affiliate link so I gain financially if you purchase after following this link)

Vibralogix provide an excellent user guide and there is plenty of help available on their support site but despite this I found it all a bit overwhelming so hopefully you will find my Linklok video tutorials helpful. They cover all the other things you need to do as well such as setting up your Paypal account, creating Paypal Buy Now buttons and so on.

This first tutorial covers the basics. The next ones will be more advanced. e.g. using a database to store products and log orders, high security, generating serial numbers, invoices, product specific emails, complex products and so on.

The next 3 tutorials will be free to use but you will need to register to receive them.

====================CLICK HERE TO REGISTER====================

Tutorial #2: How to Customise the Download Page

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Tutorial #3: Using a Database or External Product File

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Coming Soon: Many more Linklok Tutorials.

5 Responses to “Paypal IPN – How to Sell Digital Downloads”

  • wayne evans says:

    what is the setup for selling more than one product if paypal is calling up only one php script “linklokipn”…do i duplicate the admin/product values being that the product id identifies separate products in the same php code?

  • admin says:

    Don’t duplicate the admin values.
    For the products you should have something like this

    You should have something like this

    $Products[]=”id1,Description,USD=29.95,dsgjhruyrhgfetg/prod1.zip,0,1440″;
    $Products[]=”id2,Description,USD=29.95,dsgjhruyrhgfetg/prod2.zip,0,1440″;
    $Products[]=”id3,Description,USD=29.95,dsgjhruyrhgfetg/prod3.zip,0,1440″;

    The id1, id2 etc should match the item_number or Item Id used in the Paypal buy button for
    this product so that Linklok knows which product needs to be delivered.

  • ax5 says:

    Hi, can u make a tutorial.

    The user can buy something from my website then pay it with paypal, then paypal/linklok will send info to my database/MYSQL/Phpmyadmin and activate the user so they can login.

    it would be great, email me if you can make it or if its done,

    arish92@live.com

  • admin says:

    Hi arish,

    Sorry can’t do a tutorial at the moment.
    Vibralogix already have a product called Sitelok that might help
    Sitelok

    <—Affiliate link.

    Mike

  • arish says:

    Hi Mike!!!

    when you have time please make this request :)

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