# fbaInbound_confirmDeliveryWindowOptions (https://sellersheetai.com/docs/mcp-api/tools/fbaInbound_confirmDeliveryWindowOptions)

> Confirm a delivery window option for a shipment (write, async).

Access: **DESTRUCTIVE** · toolset amazon_sp · family sp.fulfillmentInbound_2024-03-20

Amazon SP-API · confirmDeliveryWindowOptions · POST /inbound/fba/2024-03-20/inboundPlans/{inboundPlanId}/shipments/{shipmentId}/deliveryWindowOptions/{deliveryWindowOptionId}/confirmation Gate: commit, choice — interactive: restate the option, wait for a typed CONFIRM; autopilot: only within the seller's instruction, named rule (one option, no tie) and stated limits; otherwise ask. USE_YOUR_OWN_CARRIER flow. Pick a deliveryWindowOptionId from fbaInbound_listDeliveryWindowOptions, confirm it, then poll the operation. A placement option must be confirmed first; a transportation option whose preconditions ask for a confirmed delivery window can be confirmed only after this. Once confirmed, no new windows can be generated (the chosen one can still be updated before the shipment closes).

## Call it

MCP tool call:

```json
{
  "name": "fbaInbound_confirmDeliveryWindowOptions",
  "arguments": {
    "store": "myStore-US",
    "plan_id": "<plan_id>",
    "shipment_id": "<shipment_id>",
    "delivery_window_option_id": "<delivery_window_option_id>"
  }
}
```

Tool API (early access — contact us):

```bash
curl -X POST https://api.sellersheetai.com/api/v1/tools/fbaInbound_confirmDeliveryWindowOptions \
  -H "Authorization: Bearer $SELLERSHEET_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"store":"myStore-US","plan_id":"<plan_id>","shipment_id":"<shipment_id>","delivery_window_option_id":"<delivery_window_option_id>"}'
```

## Arguments

| Name | Type | Required | Description |
|---|---|---|---|
| `store` | string | yes | the store ref `<store>-<CC>` (name-country, e.g. 'myStore-US') — one of get_user_context's store_refs, verbatim. |
| `plan_id` | string | yes | the inboundPlanId (from fbaInbound_createInboundPlan or fbaInbound_listInboundPlans). |
| `shipment_id` | string | yes | the shipmentId (from the placement option's shipmentIds in fbaInbound_listPlacementOptions, or fbaInbound_getInboundPlan once a placement is confirmed). |
| `delivery_window_option_id` | string | yes | the deliveryWindowOptionId (from fbaInbound_listDeliveryWindowOptions; 36–38 chars). |

## Result

- `data.operationId` — poll with fbaInbound_getInboundOperationStatus until SUCCESS.