Payments2Us ManualsPayments2Us - Frequently Asked QuestionsPayPal - FAQWhy am I getting an Error Log with "Program/Area: payPalUtil.accessToken" and "Subject: HTTP Callout invalid_client"

Why am I getting an Error Log with "Program/Area: payPalUtil.accessToken" and "Subject: HTTP Callout invalid_client"

This means either of the below is incorrect:

  1. Environment (needs to be Sandbox or Production)
  2. PayPal Username / Password

Please review the setup procedure for PayPal.  Pay Particular attention to the Environment (Production/Sandbox) inside PayPal setup