Why van stock is a distinct inventory problem
Field service inventory lives in trucks and vans that leave the building every morning and don't come back until evening, which makes it fundamentally harder to see than stock sitting on a warehouse shelf. Without a system, van stock is typically tracked by technician memory or an occasional manual count—both of which drift steadily out of sync with reality as jobs get done and parts get used.
The cost of a stockout looks different here than in a warehouse: a technician who arrives at a job site without the right part doesn't just delay that job—they often have to reschedule the whole visit, absorbing a wasted trip and a frustrated customer, for a part that might cost a fraction of the technician's hourly rate.
Multi-truck field service businesses compound the problem: one truck might be overstocked on a part that's sitting unused while another truck is stuck without it on the way to a job that needs exactly that part.
Tracking parts per vehicle, not just per warehouse
Set up each vehicle as its own stock location, with its own par levels for the parts that technician's job mix actually uses—an HVAC tech's van should carry different par levels than an electrical contractor's, even within the same company. Scan parts in when restocking from the warehouse and scan them out (or log usage) when installed on a job, so the van's stock record reflects reality instead of a stale count from last month.
Set low-stock alerts per vehicle so a technician or dispatcher sees a restock need before the next job, not after arriving on-site without the part. Track which parts each technician typically consumes so restocking before a job matches the actual job type, not a generic checklist.
StockFlow tracks stock per location—including a vehicle as a location—with phone barcode scanning, so a technician can scan a part used on a job in seconds and dispatch can see every truck's stock from the office.
- Set up each vehicle as its own tracked stock location
- Set par levels per vehicle based on that tech's typical job mix
- Scan parts in on restock and out (or log usage) on install
- Alert dispatch before a truck runs low, not after a missed job
Restocking rhythm and warehouse-to-truck transfers
Restocking a van is effectively a transfer from the warehouse location to the vehicle location—recording it as a transfer (rather than a separate untracked pickup) keeps both stock records accurate and shows what's actually been loaded onto each truck for the week.
Reviewing which parts run low across most vehicles regularly, versus which are only ever needed on one specific truck, helps set smarter warehouse reorder points that reflect real field demand instead of guesswork.
Coordinating stock across a multi-truck fleet
Once a field service business runs more than a couple of vehicles, dispatch benefits from seeing every truck's stock in one place: a technician who's out of a part can often get it from a nearby truck that's overstocked on it, avoiding both a warehouse trip and a missed job, if that visibility exists in the first place.
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