Advice on Paypal/digital solution needed for check out

Please tell me if I am in the wrong forum, first time I have asked a question. Firstly I am not experienced in any coding. I am looking for a solution so I can accept Paypal payments on my site but it is neither a digital download or physical product we sell. When the customer completes payment we need to communicate with another server and request a random access code to be generated by that server which then allows access to an online product. The access code needs to be emailed to the address given in the checkout order. We sell a number of online products and the code is different for each one. Is there a solution out there or if not, how do I go about having someone write some code for me to make this work in wordpress.
Thanks for your suggestions.