How do I link JotForm with my business paypal account?

Paypal is asking for Third Party Permission Username, so I went to Jotform's instruction page on API, I created a new API key, and copied this to the Paypal question "Third Party Permission Username" and answered with the new key created from Jotform, pressed Paypal's "Lookup" button and got an error message from Paypal "please enter a valid API username. This seems so complicated.  Please help

Hi,

You will have to get your Paypal API Credentials and paste it into the payment wizard.

Here's a guide for that: https://www.jotform.com/help/391-How-to-Integrate-Form-with-Paypal

If you need further assistance, let us know.