Once all available pre-order units have been reserved, the item will change to "Out of Stock".
If an item you ordered is now coming up as out of stock, don't worry! This just means all available units for that item have been reserved. "Out of Stock" does not necessarily mean that we received the item already either. Since we order a set and confirmed amount of each item, there's a limit to how many orders we can accept. We don't want to oversell our pre-orders, so items automatically go out of stock when all units are reserved, and oftentimes this is before the item has arrived.
"Out of Stock" pre-orders will go back in stock and continue to accept orders if any additional units become available.