Capable to promise (CTP) systems enable enterprises to commit to customer orders based on production/resource capacity (available or planned) and inventory (available or planned). CTP solutions consider resource (equipment, people and materials) availability, capacities, constraints, work in progress or planned work, multiple steps in the production process, multiple nodes in a supply chain network (including, in some sophisticated use cases, supplier networks) and various rules to calculate accurate promises. Newer systems also consider non-production-related constraints, such as transportation, which enable delivery factors (such as shipping mode options) to be factored into promise dates.