Product items in payment

Scope: catalog Permissions to execute: for all

Methods to handle product items inside a payment:

Function	Description
crm.item.payment.product.add	Adds product to a payment.
crm.item.payment.product.delete	Deletes product from a payment.
crm.item.payment.product.list	Gets list of product items (products or services) inside a payment.
crm.item.payment.product.setQuantity	Updates the number of product inside a payment.