I am working on a wordpress site. I am selling a digital course on it. Users interested in the course will pay locally via bank and send me payment details.
So after I confirm their payment I will like to add their email and phone number to database. I don't know about also generate a unique code like password to append the email and phone number. So they can enter their email/phone and the password I gave to them to enter part of the site where they have access to the course materials.
Just like am going to manually create the user login by by self so they can access the page. Am just a part time beginner WordPress developer please explain answers comprehensively.