In order for your to accept payments via PayPal, you need to generate API keys and enter them on “Settings -> Payment Processing -> Accept PayPal Payments” page:
1. Navigate to https://developer.paypal.com/developer/applications/ and create your new Live Application
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2. Once you’ve created your App, click on it’s name and it will show you your API keys that you have to enter in LatePoint settings:
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3. Enter Client ID and Secret into LatePoint PayPal Settings in your WordPress admin and you are good to go.