Orders have nothing to do with it . It has everything to do with the advance payment received. If they don't receive the advance , the order is counted against next year's target.
payment is given in stages for development contracts, and there are very few advances paid initially now in most cases if its not a development contract, for instance if its delivery contract after T0+certain months after the first delivery schedule depending on structure of payment 30-50% are paid. then another 30% then final delivery clears the rest. Otherwise if single lot delivery its cleared in one go, or 90%.
Now different labs probably have their own structure, RCI clears whole after final delivery, while the likes of BEL, the shipyards specifically etc receive payment in stages after certain delivery/progress completion. DRDL does slightly different depending on delivery, if one lot delivery.
So what happens even if contract is signed today, the order & payment will likely be counted in next years book, this also helps improve next years book forecast.