Do you operate a service-based mobile business that allows technicians to travel in company vehicles with company inventory? One of the problems with this sort of business is stock inventory control. Because you allow for inventory to leave your place of business, you're reliant on the technician to use and record only what they need to get the job done. When the vehicle is returned to the business, all inventory used for the job should be allocated to the customer and charged, and only those items removed from your stock levels.