Customer hierarchy allows payment methods to be shared.
Once a hierarchy is created and a parent has a payment method, that method becomes available to be shared with its children.
When created, an ancestor's default payment method becomes the payment method of any child customer. You can manage payment methods within customers to view and change payment methods.
To change the default payment method, click the ellipses and click Make default.
To manage the sharing of payment methods, click the ellipses and click Sharing. From the sharing screen, you can filter, find, and modify the payment methods to share with any child accounts.