Usage Case – Will the plug in allow this?

We run a self catering apartment. Our booking system automatically sends an email to guests prior to arrival with check in information.

I’ve created an online knowledge base with Basepress (it uses custom post types) to use as a digital guest handbook detailing how to use the appliances, key information and so on.

I don’t want this guest manual knowledge base part of our website to be accessible to general website visitors, just guests who’ve received a (single) code in their booking email. I don’t want to generate lots of individual codes, just the one in the email.

They’d then register on the website using the code and then the access control would allow them (as subscriber level users?) to view the knowledge base.

If there was the option for them to register using social media as well, that’d be great.

Will your plug in allow this? I’m guessing that I’ll need the premium version?