Start by using select queries getting the data you want...then you can add on criteria for what groups of past due periods you want 1-3 months 4-6 months, whatever.<br><br>You mean like this? I want to do an aging of inventory availability.... <br><br>SELECT DISTINCTROW Inventory.[Item Number], Inventory.Category, Inventory.[Sub Category], Inventory.[Supplier Number], Inventory.Description, Inventory.Manufacturer, Inventory.Model, Inventory.[Last Inventory Date], Inventory.[Quantity in Stock], Inventory.Cost, Inventory.Retail, Inventory.[Special Features], Inventory.[Item Picture], Inventory.[Reorder Point], Inventory.[Reorder Quantity], Inventory.[Quantity on Order], Inventory.[Last Order Date], Inventory.[Amount Ordered], Inventory.[Expected Delivery]<br>FROM Inventory<br>WHERE (((Inventory.[Quantity in Stock])>=0));<br><br>and this???. I want to create an aging report that shows when the stock will go negative so I know when to move orders up.<br><br>SELECT DISTINCTROW Inventory.[Item Number], Inventory.Category, Inventory.[Sub Category], Inventory.[Supplier Number], Inventory.Description, Inventory.Manufacturer, Inventory.Model, Inventory.[Last Inventory Date], Inventory.[Quantity in Stock], Inventory.Cost, Inventory.Retail, Inventory.[Special Features], Inventory.[Item Picture], Inventory.[Reorder Point], Inventory.[Reorder Quantity], Inventory.[Quantity on Order], Inventory.[Last Order Date], Inventory.[Amount Ordered], Inventory.[Expected Delivery]<br>FROM Inventory<br>WHERE (((Inventory.[Quantity in Stock])<=0));<br>