Use Supply Usage Tolerance
This field applies to APS.
Select the field to use the tolerance factor defined in the Supply Usage Tolerance field. You can define a default, global tolerance value in the Supply Usage Tolerance planning parameter or you can define an item-specific tolerance value in the same field on the Items form. If the item-specific value is 0, the system uses the global tolerance value.
The system applies the tolerance factor only if there are insufficient planned supplies and inventory available to satisfy the demand. If this is the case, the system can allocate planned supplies that are available within the tolerance time window to satisfy any remaining demand quantity.
See Using Supply Usage Tolerance for more information.