Under Advanced Options/Additional Features, turn on the “Payments Without an Invoice” option and the “Add Customers” option.
Next, under Advanced Options/Add Customers, check the box to “Allow the public to signup from your web site”. You will then be given additional options and access to your sign-up page URL which you can add to your web site or include in an email.
You can customize the heading on the sign-up page as well as the instructions shown to the customer. If you have terms or text in the instructions that you want your customer to agree to, you can enable the "I agree" checkbox and add the specific language you want shown next to the checkbox. After the customer completes the sign-up form, you can enable one of the following actions:
- Show thank you message
- Show payer enroll page
- Show payment page
- Show auto-pay approval page (Contact support for this option)
Here is an example of the sign-up page the customer will see using the above settings: