Unfilled records are downloaded along with the rest of the OCLC Borrowing requests each time the ILLiad Connection Manager runs its update. The Unfilled OCLC status contains requests that have not been able to be filled by any of the potential lenders in the string. Requests in the OCLC status of Expired (those that have exceeded the customer's Need By date) are treated as Unfilled requests when imported into ILLiad. Once imported into ILLiad, Unfilled items are moved to a status of Awaiting Unfilled Processing.