Payment links give you an easy way to invite someone to make a one-time payment.
Use these when you just want a quick way for someone to make a payment and you don't need to gather any other information.
Once you have the link created, you can choose to customize it for the specific person you're sending it to. Doing this will automatically fill in any contact info from their contact record so that all they have to add is their credit card info.
Create the link as shown in the tutorial below. Click the blinking instructions to proceed through each step.