What type of relationship exists between FulfillmentOrder and Order Delivery Method?

The type of relationship that exists between FulfillmentOrder and Order Delivery Method is Lookup (OrderDelivery Method). A Lookup field is a type of custom field that creates a relationship between two objects, but does not support rollup summary fields. In this case, a FulfillmentOrder has a Lookup field named Order Delivery Method that references an Order Delivery Method record. An Order Delivery Method is a record that represents a delivery option for fulfilling orders, such as standard shipping, express shipping, in-store pickup, etc. An Order Delivery Method can have many FulfillmentOrders associated with it, but a FulfillmentOrder can only have one Order Delivery Method. Verified References: https://help.salesforce.com/s/articleView?id=sf.custom_field_types.htm &type=5https://help.salesforce.com/s/articleView?id=sf.order_management_order_delivery_method.htm &type=5