Reorder point and reorder in quantity of are the basic numbers used to generated purchase orders for replenishment.
If the available to promise amount falls below the reorder point, then that product will be included in the next generated purchase order (the available to promise amount is the quantity on hand minus the quantity reserved for sales plus the quantity on order).
The reorder point max is the target amount for the product when issuing a new purchase order. When the available to promise falls below the reorder point the generated purchase order will have a quantity to bring the available to promise amount above the reorder point max value.
The reorder in quantity of value is the increment in which the product should be ordered. For example, if a product is always ordered in boxes of 32, then the reorder in quantity of field should be set to 32 so that the purchase order will be generated with a full number of boxes.
Each product may have a reorder point and reorder in quantity of for each location. Each product also has a "Std reorder point" and "Std reorder in quantity of" which are applied to locations that do not have specific value for the fields.
If a product has a reorder point for a location, then that value overrides the standard reorder point for the location. If the reorder point for a location is blank and the product has a standard reorder point, then the standard reorder point is used for that location. If both the per location and standard reorder point fields are blank, then the product will not be included in reorders.
The reorder point and reorder in quantity of fields can be edited directly on the product detail page, imported from Excel, and included in reports.