1. A computerized method for determining the availability of one or more order items within a supply chain environment, the method comprising: defining a profile to be associated with an availability check, wherein the availability check consists of a filter process, a sort process, a prepare process, a check process, and an update process; electronically building one or more processing packages for the one or more order items based on the defined profile; and executing the availability check using the profile and one or more processing packages.