In order to receive PayPal payments for your online store, you must first have a Paypal business account.
If you already have a business account, you may skip this step.
When you log in to your PayPal account, click on the "settings" wheel at the top right, next to "Log out."
Next, scroll all the way down, and under "Account options," click on "Upgrade to a business account."
On the next page, click "Upgrade," and now you have a business account!
Now that you have a business account, learn how to retrieve your API information here.