Each PayPal API call contains a unique set of input fields that you supply with the request called _____.

How many characters are required for the currency code ISO 4127?

API response fields might not be returned if:

In order to verify proof of payment you must use which of the following:

How is the registered return URL used in OpenID Connect in Paypal?

During the testing phase of mobile development, which of these should you use to avoid moving real money around?

Each PayPal API call contains a unique set of input fields that you supply with the request called _____.

Which of the following is an example of how to properly specify which type of currency the pay outs are to be made in?

What does NVP stand for?