Earliest possible delivery date

This endpoint provides the earliest possible delivery date for an item or a list of items. This information can be used on a search result or product overview page to inform the shop user about the earliest delivery date that can be expected for a specific item.

More API information can be found here: REST API documentation – checkoutoptions/delivery/earliest

Limitations and mandatory configurations

• The maximum number of days that are checked is limited to 45 days.

• Since the endpoint checks for delivery days, it is mandatory to have transit times configured per carrier.

• When defined for the tenant, average fulfillment duration, fulfillment times of the facilities, and carrier capacities are included in the calculation.

Request and response

Request

• earliestDeliveryDate: Set to "now" by default, meaning the customer is interested in an ASAP delivery. If a different future date is specified, available delivery dates will be checked starting from that point in time (i.e., the user does not want to receive their order before a given date).

• tenantArticleIds: The earliest delivery date can be calculated for a single item or a list of items. If a list of items is requested, the calculation is done for each item individually (not as a basket).

• consumerAddress: The request must include at least the consumer's country. This is important because non-delivery days are taken into account when calculating the earliest delivery date, and these vary by country and region. It is also possible to provide a postal code in the request (e.g., for logged-in shop users). Doing so allows considering region-specific non-delivery days.

• filter: Since the request does not check for fences it is possible to include filters referring to custom attributes. If the request contains a filter with a custom attribute only those facilities are checked which also have the matching custom attribute attached to the facility entity.

Response

The response contains a list of the requested items with:

• earliestPredictedDeliveryDate: Earliest point in time when the user can expect this particular item to be delivered in case the order would be placed at this moment.

• availableCarrier:

  • name: Name of the carrier (key) like "DHL"

  • nonDeliveryDays: regions where this particular date is a non-delivery date of the corresponding carrier (for example, DE-NW: DHL does not deliver on March 3rd 2025 in North Rhine Westphalia due to carnival)

Expected stocks that were announced via purchase order are also considered in the response. Only purchase orders with requestedDate.type "ASAP" are not considered as these deliveries are expected to arrive as soon as possible and there is no exact date that can be used to check the potential availability of these stocks for incoming orders.

Get earliest delivery

post

Get earliest delivery timepoint for a given checkoutOption

Authorizations

BearerToken

AuthorizationstringRequired

Bearer authentication header of the form Bearer <token>.

Body

application/json

CheckoutOptionsDeliveryEarliestRequest

earliestDeliveryDatestring · date-timeOptional

Earliest delivery date

includeCalculationHintsbooleanOptional

Whether to include calculation hints in the response

includeListingDetailsbooleanOptional

Indicates whether listing-related details should be included in the response. If set to true, the response contains additional listing details. Defaults to false.

tenantArticleIdsstring[] · min: 1Required

List of tenant article IDs

Responses

200

The request could be evaluated

application/json

CheckoutOptionsDeliveryEarliestResponse

calculationHintsstring[]Optional

Calculation hints for debugging

400

Invalid input. See response for details.

application/json

401

Your user is not allowed to operate against this API instance

application/json

403

Your user, although recognized, is not authorized to use this

application/json

404

The requested entity was not found

application/json

409

A version conflict occurred.

application/json

post

/api/promises/checkoutoptions/delivery/earliest

HTTPcURLJavaScriptPython

POST /api/promises/checkoutoptions/delivery/earliest HTTP/1.1
Host: your-tenant-name.api.fulfillmenttools.com
Authorization: Bearer YOUR_SECRET_TOKEN
Content-Type: application/json
Accept: */*
Content-Length: 337

{
  "consumerAddress": {
    "addressType": "POSTAL_ADDRESS",
    "city": "text",
    "country": "DE",
    "houseNumber": "text",
    "postalCode": "text",
    "province": "text",
    "street": "text"
  },
  "earliestDeliveryDate": "2026-03-02T16:38:16.066Z",
  "filter": {
    "customAttributes": {},
    "tags": []
  },
  "includeCalculationHints": true,
  "includeListingDetails": true,
  "tenantArticleIds": [
    "text"
  ]
}

{
  "calculationHints": [
    "text"
  ],
  "checkoutOptions": [
    {
      "availableCarriers": [
        {
          "carrierRef": "text",
          "latestPickingStartDate": "2026-03-02T16:38:16.066Z",
          "name": "text",
          "nonDeliveryDays": [
            "text"
          ]
        }
      ],
      "availableFacilityConnections": [
        {
          "connectionRef": "text",
          "latestPickingStartDate": "2026-03-02T16:38:16.066Z",
          "nonDeliveryDays": [
            "text"
          ]
        }
      ],
      "earliestPredictedDeliveryDate": "2026-03-02T16:38:16.066Z",
      "listingDetails": [
        {
          "customAttributes": {},
          "facilityRef": "text",
          "tenantFacilityId": "text"
        }
      ],
      "tenantArticleId": "text"
    }
  ]
}