
QuickJob - Job Board PHP Script
How to get PayPal API credentials username, password and signature? Follow these steps1: Under Tools, More Tools – for latest PayPal interface Log in to your PayPal accountMove your mouse over the Tools menu in top navigation. Find More Tools within that. And click it.S ...
Security Header Not Valid When Setting up Paypal Paypal security header is not valid error message can be shown because of the following reasons: You have set up live credentials and you have turned Test mode to ON. If you want to test you need to set TEST credentials and ...