what to do if For example, I want to sell something to a customer for $15 per month, so they buy it and then I keep taking $15 per month from them every month automatically. Anybody please provide me a step by step instruction.... Thank You Very Much Dhix
When you create your payment button with Paypal and it asks to choose a button type, select subscriptions and just fill the rest of the details according to your product.
you can refer to https://www.paypal.com/pdn-recurring , click on the "see demo" at the top right corner to see the step by step instruction