To make inventory generate reminders you first select Inventory Management from the Gear menu.
Next you open the Inventory Types Panel
Then you click on the add new button
Here you set up the new Inventory Type
Once finished, you save the Inventory Item Type and then you open the Inventory Panel
Once the panel is open you select the add button for this panel
In the dialog that appears, you select an inventory item from QuickBooks using the autocomplete box
Once you select the desired inventory, you will now link that to the Inventory Type you just created.
Fill in any other extra information you would like and then select Save. These Inventory Items will now add reminders when they are provided to a patient.