curl --request POST \
  --url 'https://api.sync.stateset.com/v1/tenants/{tenant_id}/inventory/reservations' \
  --header 'x-stateset-api-key: YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "sku": "SKU-TENT-2P-GRN",
  "quantity": 2,
  "location": "string",
  "referenceId": "string"
}'

{
  "orderId": "string",
  "reserved": 1,
  "failed": 1,
  "reservationExpiresAt": "2026-08-31T14:22:05Z"
}