To use the PayPal service, open https://developer.paypal.com/ then login with your PayPal account
On the side nav, click on “Accounts” then “Create Account”
Select the option Business (Merchant Account) as the Account Type then fill in the rest of the fields and save the account
This is a test account (sandbox account)
Click on My Apps & Credentials on the side nav, then under REST API apps click Create App
Type your App Name (your shop name for example) then select the Sandbox developer account that you created.
Save the information then go back to My Apps & Credentials and under REST API apps click on your app
You should be presented with this interface
You can copy the Client ID and Secret ID and paste them to their respective fields in the module configuration
You can as well click the Live button to enable the live mode, you will be provided with two live keys.