Once you have created an Item you can perform actions on it. The actions that can be performed are limited by the Items payment type and the Items current state.
The most common express workflow is to request_payment and make_payment. An express item releases the funds immediately to the seller.
Some Item actions require parameters to be passed with the action. For example, make_payment requires the :id of the payment account. More detail is found for the Item action in the relevant reference guide page.
As part of executing an Item Action and Item's status should change for a list of status please refer to: Statuses