***
title: "FulfillmentProcess"
generated: true
---------------
## defaultFulfillmentProcess
The default [FulfillmentProcess](/current/core/reference/typescript-api/fulfillment/fulfillment-process#fulfillmentprocess). This process includes the following actions:
* Executes the configured `FulfillmentHandler.onFulfillmentTransition()` before any state
transition.
* On cancellation of a Fulfillment, creates the necessary [Cancellation](/current/core/reference/typescript-api/entities/stock-movement#cancellation) & [Allocation](/current/core/reference/typescript-api/entities/stock-movement#allocation)
stock movement records.
* When a Fulfillment transitions from the `Created` to `Pending` state, the necessary
[Sale](/current/core/reference/typescript-api/entities/stock-movement#sale) stock movements are created.
## FulfillmentProcess
A FulfillmentProcess is used to define the way the fulfillment process works as in: what states a Fulfillment can be
in, and how it may transition from one state to another. Using the `onTransitionStart()` hook, a
FulfillmentProcess can perform checks before allowing a state transition to occur, and the `onTransitionEnd()`
hook allows logic to be executed after a state change.
For detailed description of the interface members, see the [StateMachineConfig](/current/core/reference/typescript-api/state-machine/state-machine-config#statemachineconfig) docs.
```ts title="Signature"
interface FulfillmentProcess extends InjectableStrategy {
transitions?: Transitions &
Partial>;
onTransitionStart?: OnTransitionStartFn;
onTransitionEnd?: OnTransitionEndFn;
onTransitionError?: OnTransitionErrorFn;
}
```
* Extends: [`InjectableStrategy`](/current/core/reference/typescript-api/common/injectable-strategy#injectablestrategy)