Once a Smart Contract is set up, the user can repeatedly request containers on these terms by simply requesting the quantity of containers he needs. This is possible as soon as the supplier marks the Smart Contract as “active”, i.e., that units are available.
If no units are available, the supplier can “pause” the Smart Contract to make sure units are not bookable.
Requesting containers on the Smart Contract creates a Smart Request. Since the terms are already fixed by your Smart Contract, you cannot negotiate them. If you negotiate them, the Request turns into a normal xChange request that needs negotiation and confirmations from both sides.