Use this letter template to let your customers know the items they've ordered are on back order and will be shipped as soon as possible. The Illinois Department of Revenue (IDOR) sends letters and notices to request additional information and support for information you report on your tax return.Learn what backorders are, their implications for customers and brands, how to prevent them, and how to deal with them without compromising customer trust. This Easy Form helps you make a letter asking your landlord for your security deposit back. This Easy Form does not send your letter. A claim for unemployment insurance benefits is effective the Sunday of the week in which you report to file your claim. We say sets or parts are available for 'Backorder' when they're not currently available but we expect them to come back soon. You can order these items. We make every effort to ship orders complete but it is sometimes necessary to backorder an item if we are out of stock. S7 Shortage or nonreceipt of an item in a multipack or sealed shipping container.