Since version 2.6.30 of the plugin, PayPal can be enabled on the cart page for quick checkout. By default, PayPal does not require the customer to provide a billing phone number.
WooCommerce on the other hand requires the billing phone. To prevent errors on the cart page, you must enable phone capture within your PayPal settings.
The steps for enabling the phone number are the same for production and sandbox.
Production & Sandbox:
- Sandbox Login
- Production Login
- Login using your PayPal Business account (Read this article to see how to setup a Sandbox business account)
- Navigate to the Settings page: Gear Icon (upper right) > Website Payments (left menu bar) > Website Preferences > Click Update
- Scroll down to the Contact Telephone section.
- Click the On option.