***
title: "FulfillmentService"
generated: true
---------------
Contains methods relating to [Fulfillment](/current/core/reference/typescript-api/entities/fulfillment#fulfillment) entities.
```ts title="Signature"
class FulfillmentService {
constructor(connection: TransactionalConnection, fulfillmentStateMachine: FulfillmentStateMachine, eventBus: EventBus, configService: ConfigService, customFieldRelationService: CustomFieldRelationService)
create(ctx: RequestContext, orders: Order[], lines: OrderLineInput[], handler: ConfigurableOperationInput) => Promise;
getFulfillmentLines(ctx: RequestContext, id: ID) => Promise;
getFulfillmentsLinesForOrderLine(ctx: RequestContext, orderLineId: ID, relations: RelationPaths = []) => Promise;
transitionToState(ctx: RequestContext, fulfillmentId: ID, state: FulfillmentState) => Promise<
| {
fulfillment: Fulfillment;
orders: Order[];
fromState: FulfillmentState;
toState: FulfillmentState;
}
| FulfillmentStateTransitionError
>;
getNextStates(fulfillment: Fulfillment) => readonly FulfillmentState[];
}
```
### create
\
RequestContext, orders: Order[], lines: OrderLineInput[], handler: ConfigurableOperationInput) => Promise<Fulfillment | InvalidFulfillmentHandlerError | CreateFulfillmentError>`} />
Creates a new Fulfillment for the given Orders and OrderItems, using the specified
[FulfillmentHandler](/current/core/reference/typescript-api/fulfillment/fulfillment-handler#fulfillmenthandler).
### getFulfillmentLines
\RequestContext, id: ID) => Promise<FulfillmentLine[]>`} />
### getFulfillmentsLinesForOrderLine
\RequestContext, orderLineId: ID, relations: RelationPaths<FulfillmentLine> = []) => Promise<FulfillmentLine[]>`} />
### transitionToState
\RequestContext, fulfillmentId: ID, state: FulfillmentState) => Promise< | { fulfillment: Fulfillment; orders: Order[]; fromState: FulfillmentState; toState: FulfillmentState; } | FulfillmentStateTransitionError >`} />
Transitions the specified Fulfillment to a new state and upon successful transition
publishes a [FulfillmentStateTransitionEvent](/current/core/reference/typescript-api/events/event-types#fulfillmentstatetransitionevent).
### getNextStates
\Fulfillment) => readonly FulfillmentState[]`} />
Returns an array of the next valid states for the Fulfillment.