Creating a Paypal API signature
To create an API signature, perform the following steps:
- Log in to your PayPal business account at www.paypal.com. Click the profile icon () on the top right side of the page. From the Business Profile menu, select Profile and Settings.
- Note: If you do not see the profile icon on the top right, select Profile which appears in the top menu when the My Account tab is selected.
- From the left menu, click Selling tools.
- In the Selling online section, click the Update link for the API access item.
- To generate the API signature, click Request API Credentials on the API Access page.
By default Paypal does not collect phone numbers from PayPal express shoppers – so you need to change your preferences to let PayPal know to collect it.
There is a setting available in PayPal Premier and Business accounts called "Contact Telephone Number".
You can find this by:
1. Logging into your PayPal account.
2. Click on "Profile" and choose "More Options".
3. Under "My Selling Tools", click "Update" located next to "Website preferences"
4. Scroll down and you'll see the following section and select On (Required Field):