Why are my submissions ending as incomplete payments?

I have some folks attempting to register.  I can see them in the pending file - multiple times in some cases - waiting for their payments to clear.  

Can you tell me what they might be doing incorrectly?  Are they using an invalid card, an address that isn't tied to the card, a credit card when they have a paypal account?

Thank you - it's a bit of an issue!

Since you're integrating with PayPal the users are redirected to the PayPal payment page to complete the payment. 

Now, when they are on the payment page if they abandon the page then the submission will end up as incomplete, if the successful complete the payment the submission will be listed on your submissions page. 

I would recommend you to check this guide about incomplete payments on PayPal: https://www.jotform.com/help/272-Paypal-Incomplete-Payments-FAQ 

We do recommend to enable the IPN option on your PayPal account to avoid have successful payments marked as incomplete, this guide will help you doing so: https://www.jotform.com/help/276-How-to-Enable-IPN-on-your-Paypal-Account 

If the problem persists, let us know.