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If Sparqle is one of several carriers and you don’t route every order to us, check deliverability first and fall back elsewhere when we can’t deliver.

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Preferred: check, then create

1

Check deliverability

POST /orders/check/{locationId} with the delivery address and any requirements (dimensions, weight, signature). We return whether we can deliver.
2

Deliverable → create

POST /orders, then fetch the label.
3

Not deliverable → fall back

Route the order to your own fallback method or another carrier.

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Alternative: create directly

You can skip the check and call POST /orders straight away. We validate deliverability during creation and reject the order if we can’t deliver. This works, but you only learn the outcome after attempting to create — the two-step flow is cleaner and preferred.