Here's how:

Configure PayPal
Volusion requires the Contact Telephone field. Here's how to prevent error messages when asking the buyer for their number at checkout:

1. Log in to your PayPal account.
2. Select Profile > Profile and settings.
3. Click My selling tools.
4. Click Update next to Website preferences.
5. Set Contact Telephone Number to On (Required Field).
6. Click Save.

Integrate Volusion

1. Log in to your Volusion Admin panel.
2. Select Settings | Payment.
3. Click More Payment Types.
4. Check the box next to PayPal.
5. Select Express Checkout (Recommended).
6. Enter the following from your PayPal account:
   • PayPal API Username
   • PayPal API Password
   • PayPal API Signature
7. Click Save.
8. Select Settings > Config Variables.
9. Select Filter > Checkout variables.
10. Check the box next to Allow Anonymous Checkouts.
11. Click Save.

See also:
Advice and answers from the Volusion Team