SellApp makes it very easy to link your PayPal account and start accepting PayPal payments for your products. Here's how.
Navigate to your store settings page, and click on the "Payment" tab to open your store payment settings.
You will find a "Connect with PayPal button". When you click on it, you will be redirected to PayPal and asked if you want to give SellApp permissions.
When you are redirected back to SellApp, your PayPal account will have successfully been linked with your store.
That's it! PayPal has been enabled for your store and you can now enable PayPal for every new product you create.
If you want to enable PayPal for products which already exist, here's how to do so:
Navigate to your dashboard, then click on the 'Products' found in the sidebar.
On the products page, click on the checkboxes of the products you want to enable PayPal for.
Click on the "Update Payment Methods" button found in the dropdown that appears. A modal will pop up; check PayPal (& optionally other payment methods if you wish)
Finally, click on "Update All" in the modal to update the products' payment methods. All the products you selected will now have PayPal enabled as a payment method.