Aggregated state for all the deliveryInformation associated with the entity.
The value is constrained to one of the following
| value | description
|
| -----------------| --------------------------------------------------------------------------------------------------------------------------------|
| PENDING | If any of the deliveries is in the "PENDING" state, the
overall state is "PENDING". |
| IN_TRANSIT | If all deliveries are currently either in "IN_TRANSIT" or
some have already been completed, the overall state is "IN_TRANSIT". |
| DELIVERED | If all deliveries are completed, with at least one of
them in the "DELIVERED" state, the overall state is "DELIVERED". |
| CANCELLED | If all deliveries are canceled, the overall state is
"CANCELLED". |
