How to Dispatch Service Technicians: Skills, Location and Parts on One Board

Every assignment trades 3 inputs against each other and they usually point at different people. The rule that works: parts first on a known fault, skills first on an unknown one, location only as a tiebreak. Most service companies use them in the opposite order.

The short version

Dispatch looks like a scheduling problem and it is a ranking problem. Given a job and eight technicians, which one goes.

Three things decide it. Whether the person can fix this equipment, whether they carry what it needs, and how far away they are. A good assignment weighs all three and a rushed one uses the third because it is the only one visible on most boards.

Which is how the most expensive outcome in the business gets produced by the fastest decision in the day.

The 3 inputs and what each one is worth

Input	What it prevents	How visible is it?
Skills and familiarity	A long diagnosis, or a second visit after the wrong call	Partly. Certifications yes, familiarity rarely
Parts on board	A return trip for a part that was in another van	Rarely, and it is the most expensive gap
Location and drive time	Unbillable travel and a missed window	Always. It is on every board

The asymmetry in the third column explains the whole problem. The input that prevents the least is the one every dispatcher can see, and the input that prevents the most is usually invisible.

Parts first when you know what the fault is

The rule that removes the largest avoidable cost.

Where the fault is identified and the part is known, whoever carries it should go, even at a longer drive. A forty minute drive with the part beats a fifteen minute drive without it, because the alternative is two visits and one of them is unbillable.

That requires two things visible at the moment of assigning: what the equipment is likely to need, which comes from its history, and which van holds the part.

Roopairs holds parts inventory alongside equipment records and the dispatch board, so both are answerable before anybody is chosen rather than after somebody arrives.

Where the part is in nobody's van, the assignment changes shape entirely. That is a job to schedule around a delivery rather than one to send somebody to today, and knowing that at 8am instead of 11am saves the trip.

Skills first when the fault is unknown

The case where familiarity is worth more than anything else on the board.

A reported symptom with no diagnosis is a job where the outcome depends almost entirely on who attends. Somebody who has worked on that model before will reach an answer in a fraction of the time, and frequently reaches a different answer.

Which means the useful question is not who is qualified. It is who has been to this equipment, or to this model, before. That is on the equipment record if the history is kept per piece of equipment, and nowhere if jobs are attached to addresses.

The exception worth naming: deliberately sending somebody unfamiliar, with time allowed, is how a service company stops having one person who is the only one who can fix a whole category. That is a training decision made on purpose rather than an accident.

Location as a tiebreak, not a criterion

Proximity is a weak proxy for suitability and it is used as a strong one.

Where two technicians are equally suitable and both carry what the job needs, the nearer one goes. That is the whole legitimate role of location in an assignment.

Used earlier in the sequence it produces the familiar pattern: the nearest person attends, diagnoses correctly, and returns three days later with the part. The dispatcher optimized the visible number and lost the invisible one.

Drive time is worth getting right when it is used. Distances on a map are not drive times, commuter routes are asymmetric, and a site fifty minutes out at 7am can be ninety minutes back at 4pm.

What the board has to show for this to be possible

Six things, and most boards show two.

• The equipment by manufacturer, model and serial rather than a symptom at an address
• Who has attended it, and what they found
• The likely part, from that equipment's history
• Which van holds it
• Real drive times at the hour being assigned
• The account's window and any spending limit

Without the first four, dispatch is a ranking over availability and proximity, which is the guess the system was bought to replace.

The 3 situations that override the rules

Each is common and each needs a decision rather than a judgment under pressure.

1. A contractual response window. Whoever can be there in time goes, and the parts question becomes what they can collect on the way
2. A safety or compliance requirement. A refrigerant job needs certification and that is not a preference
3. A customer relationship that outranks efficiency. An account where continuity matters may justify sending the person who knows them at a worse drive time

The third should be written down per account rather than decided by whoever answers the phone, because it is a commercial decision being made operationally.

What to measure to know whether the order is right

One number, and it is the one this whole article is about.

Second visits, with the reason recorded from a short list rather than as free text. After a quarter the distribution is visible, and the two causes that dominate are usually the part not being on the van and the equipment not being what was expected.

Both of those are dispatch decisions made without the information above. Neither is a technician problem, and neither is fixed by a better calendar.

The pain starts around your third or fourth technician, which is also where a dispatcher stops being able to hold the answers in their head and starts needing them on the board.

Roopairs runs a product tour where you can see the dispatch board with equipment records, history and parts inventory behind it.

What service companies in the trade say

“Recurring Contracts: Managing recurring contracts is straightforward and convenient, giving us peace of mind for ongoing services.” — Brady Hale

Also worth reading

• Dispatch Software for Kitchen Service Companies
• Running a Dispatch Board When Every Call Is Urgent
• Why field service technician productivity starts on the job site

Frequently asked questions

What should decide which technician goes?

Parts first when the fault is known, skills first when it is not, and location only as a tiebreak between equally suitable people. Most service companies use them in the opposite order because location is the only one on the board.

Why send someone further away?

Because a forty minute drive with the part beats a fifteen minute drive without it. The alternative is two visits, and the second one is unbillable and consumes a slot that could have carried new work.

What does the board need to show?

The equipment by manufacturer, model and serial, who has attended it before, the likely part, which van holds it, real drive times at the hour, and the account's window. Most boards show the last two.

When does familiarity matter most?

On an unknown fault, where the outcome depends almost entirely on who attends. Somebody who has worked that model reaches an answer faster and frequently reaches a different one.

What overrides the normal order?

A contractual response window, a certification requirement, or an account where continuity outranks efficiency. The third should be written down per account rather than decided by whoever answers the phone.

How do you know the order is wrong?

Record the reason on every second visit for a quarter. If the part not being on the van and the equipment not being what was expected dominate, those are dispatch decisions made without the right information.