Fuel dispensing can only occur when the fueling point status is "Preauthorized." If the status is "Idle," lifting the nozzle will not activate the pump; instead, it will change the fueling point status to "Calling." When the pump status is "Preauthorized," lifting the nozzle will initiate the fueling process, changing the status to "Fuelling."
To stop the dispensing process, simply place the nozzle back in its holder. This action will change the status to "Unavailable," and a transaction for that specific dispensing will be created. No further dispensing can occur at this fueling point until this transaction is cleared.
There are various methods to authorize the fueling point using Demo POS. In this chapter, we will cover all of these methods, namely simple, preset and prepay.