I try out the PayPal checkout button in javascript. When the login popup and with credentials of another Paypal account (purchaser) entered, it will shows error "...some info does not exist..". I have done the following: 1) Replace the demo sandbox id (original) with the sandbox client ID from my App. 2) Enable the login options for both the sandbox and live under above App. Can someone assist? I am a non US developer.
