| 摘要 |
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, are described that receive, from a device, a request to obtain an amount of physical items from an account, the account defining a total quantity of the physical items able to be obtained from the account, and the account being maintained across multiple locations at which the physical items are stored. The request is transmitted to at least one computer that manages inventory of the physical items for at least one of the multiple locations. Inventory availability information is received from the at least one computer that manages inventory of the physical items, including information regarding availability of the amount of physical items, and availability of a combination of differently-sized subunits of physical items that satisfy the requested amount. The inventory availability information is then transmitted to the device. |
