I tried to make Apple Juice - 399 ea. But since my character is overweight, I just got an error that I cannot carry more items after the transaction with the NPC.
But when I checked my inventory, the required items were taken (Apple - 399 ea and Empty Potion Bottle - 399 ea). 1197 Z was also deducted from my character's wallet. No Apple Juice was added to my inventory.