no
It depends on the context. Someone may be unavailable because they are away for some reason. A service may be unavailable due to technical difficulties. An item may be unavailable because it is out of stock.
When a product is labeled as "currently unavailable" on Amazon, it means that the item is not currently in stock or being sold by the seller. This could be due to various reasons such as inventory constraints, temporary out-of-stock situations, or the seller discontinuing the product.
When something is on back order it means the item ordered is out of stock. When the item is in stock again or available from the manufacturer it will be shipped as soon as possible.
"Ex stock subject to prior sales" means that the item is currently in stock and available for purchase, but there is a possibility that it may have already been sold to another customer. This phrase is often used in sales to indicate that availability is not guaranteed even though the item is currently in stock.
When something is on back order it means the item ordered is out of stock. When the item is in stock again or available from the manufacturer it will be shipped as soon as possible.
The "Primal Dialga Flute" does not exist in the Pokemon games. Primal Dialga was a darkened form of Dialga in the Mystery Dungeon series and was part of the story line. No item was required to change Dialga into this form and an option to revert it back once recruited was and is currently unavailable.
A back order is an order which cannot be currently filed or shipped, but is requested for when the item becomes available.
It depends on the item. Call or e-mail the American Girl place and ask.
In order to delete a stock item go to Gateway of tally -> Inventory info -> Stock item -> Alter -> then select the stock item and press enter -> press Alt + D -> press 'y' to confirm and 'n' to deny.
Issue the customer a raincheck for the item that is out of stock.
Its a way to pledge that they will always be in stock and upon the rare occasion that they wont be in stock, they loose a bit of money, and get you to come back and spend it next time, or right then and there.
Arceus is an Event Legendary Pokémon so can only be obtained using the event item Azure Flute. Arceus' event however was never released and is currently unavailable in Pokémon Diamond.