Key takeaways
- Most dealers get the clearest picture from shops every month rather than a big batch once or twice a year.
- Size the plan so each salesperson and main lead source is shopped a few times over a quarter.
- Spread shops across days, times and channels, including evenings and weekends.
- Shop more often around changes: new hires, a new lead source, a new BDC or a new process.
When dealers ask how often to mystery shop a dealership, the practical answer is every month, with enough shops to reach each salesperson and each main lead source a few times over a quarter. A steady monthly rhythm beats a big batch once a year. It gives you fresh material for sales meetings, shows trends and treats your team fairly.
The right number of shops depends on your store: how many people take calls, how many lead sources you pay for and whether you run a BDC. This guide walks through how to size it, how to spread shops out and when it makes sense to shop more often.
Why monthly works better than once a year
Some dealers think of mystery shopping as an annual check-up: run a batch of shops, read the report, file it away. That approach has a few weaknesses.
- A snapshot is not a pattern. A week of shops catches one week. If a key salesperson was on holiday or the phones were short-staffed, the results tell you about that week, not your store.
- It is hard to act on. A thick annual report lands all at once. Monthly results arrive in a size you can use at the next sales meeting.
- It misses change. Your team, your inventory and your lead sources change through the year. Monthly shops follow those changes.
- It feels like an exam. A once-a-year audit can feel like a test. A regular rhythm feels like a normal part of how the store works.
A monthly rhythm also builds trends. On Lock's Growth and Scale plans, results come with month-over-month trends, so you can see whether something has shifted rather than guessing.
How often to mystery shop a dealership, by store size
Here is a simple way to think about volume. The aim is coverage: every salesperson who takes calls or leads, and every main lead source, gets shopped a few times over a quarter.
| Store profile | Shops per month | Example plan | Shops per quarter |
|---|---|---|---|
| Small store, a few salespeople, one or two lead sources | 2 | Starter: 1 phone, 1 internet | 6 |
| Mid-size store, several salespeople and lead sources | 5 | Growth: 3 phone, 2 internet, plus an inventory awareness shop | 15 |
| Large store, many salespeople, a BDC or high lead volume | 10 | Scale: 5 phone, 5 internet | 30 |
To put that in plain arithmetic, as an example: say your store has eight salespeople taking calls and leads. On Growth, you get 15 shops a quarter, which works out to roughly two shops per person over three months. On Scale, it is 30 shops a quarter, nearly four per person. Neither is a perfect sample, but both give you real calls to listen to and patterns that start to show.
Prices are on the dealership mystery shopping cost page. All plans are month-to-month, so you can change the size as you go.
Balancing phone and internet shops
Think about where your buyers come from. If most of your opportunities arrive as internet leads, lean toward internet shops. If your phones are busy, lean toward phone shops. Most stores benefit from a mix, because phone and internet shops test different things. Internet leads vs phone ups covers how the two differ.
How to spread shops across the month
When shops happen matters almost as much as how many. A good provider spreads shops so they reflect a real week at your store.
- Mix the days. Weekdays and weekends, including Saturdays, which are often the busiest days on the floor.
- Mix the times. Morning, midday, late afternoon and evening. Leads sent at 9 p.m. tell a different story than leads sent at 10 a.m. See why response time drops on weekends.
- Mix the sources. Rotate internet shops across your website, AutoTrader.ca, CarGurus, Kijiji Autos, Facebook Marketplace and anything else you pay for.
- Mix the vehicles. New and used, popular and slower-moving units. Real vehicles from your live inventory keep shops realistic.
- Avoid a pattern. Shops that always land on the first Tuesday of the month are easier to spot. Variety keeps results honest.
When to shop more often
Some moments call for more coverage. Because Lock is month-to-month, you can move up a plan for a few months and come back down.
New people
New salespeople or BDC agents are learning your store's way of doing things. A few extra shops give their manager real calls to talk through in early one-on-ones, and plenty of chances to point out what they are already doing well.
A new lead source
If you have just started paying for a new source, shop it early. You want to know that leads arrive in the right place and get a reply, before a month of spend goes by.
A new process or system
A new phone system, a new call routing setup, a new CRM or a new BDC all change how buyers move through the store. Shops confirm the change works the way you intended. Our page on BDC mystery shopping explains how BDC shops work.
Busy seasons
Spring and year-end are often busy for dealers. Volume can stretch even a strong process, so a few more shops in those months show how things hold up under load.
When to shop less often
It is fine to scale back. If results have been steady for several months, your team is stable and nothing major is changing, a smaller plan can keep a light, steady read on things. The value of a monthly rhythm is in its consistency, not its size.
What we would gently suggest is not stopping entirely. A gap of several months means you lose the trend line, and when you restart, it takes a while to know whether a change in results is real.
Dealer groups: how often to shop each rooftop
For dealer groups, consistency across stores matters. If one rooftop gets ten shops a month and another gets two, comparing them is hard. Many groups pick the same plan for every store, then adjust individual rooftops if something specific comes up.
Lock's group pricing helps here: groups of 3 to 5 locations save 10%, and groups of 6 to 10 save 15%. That makes it more practical to shop every store on the same rhythm.
Signs your shopping frequency is about right
There is no perfect number, but a few signs suggest you have found a rhythm that works for your store.
- You always have something to play. Each month brings at least one call or reply worth sharing at a sales meeting, often a great one.
- Everyone appears in the results. Over a quarter, every salesperson who takes calls or leads has been shopped at least once or twice.
- Every lead source gets a turn. Over a few months, each source you pay for has been tested.
- Patterns are visible. You can tell the difference between a one-off and a habit, because you have enough shops to compare.
- Nobody is overwhelmed. You and your managers can actually read the reports and listen to the recordings. If results pile up unread, the plan may be bigger than you need right now.
Signs you might need more shops
If a quarter goes by and some salespeople have never been shopped, or a lead source has not been tested, coverage is thin. The same is true if you are about to make a decision, such as changing a lead source or call routing, and you do not feel you have enough data to make it with confidence.
Signs you might need fewer
If reports arrive faster than anyone can review them, or results have been steady for a long stretch with no changes coming, a smaller plan may serve you just as well. Fewer shops that get listened to beat more shops that sit in an inbox.
A simple illustration
Picture a store with five salespeople and three paid lead sources: the website, AutoTrader.ca and Kijiji Autos. On Starter, two shops a month gives six a quarter. That is enough to hear three calls and test each source about once, but some salespeople may not be shopped in a given quarter. On Growth, fifteen shops a quarter works out to about three per salesperson, and the six internet shops can test each source twice. Neither choice is wrong. It depends on how much detail the managers want, and how much time they have to use it.
Comparing rooftops fairly
When a group looks across stores, it helps to compare like with like. Stores of very different sizes, brands or lead mixes will naturally score differently on some criteria. It is often more useful to compare each store with its own results over time, and to look at criteria rather than totals. A store that moved from rarely suggesting an appointment time to doing it on most shops has achieved something worth celebrating, even if its total score is still below a sister store's.
Keeping the same rhythm across every rooftop makes that kind of comparison possible. It also keeps the program feeling fair, because every store is measured the same way, on the same schedule.
Using a monthly rhythm well
The point of shopping regularly is to have regular material. Some managers pick one great call each month to play at the sales meeting. Others work recordings into monthly one-on-ones. Some groups review results by criterion across stores each quarter. However you use it, a steady rhythm makes the data feel like part of the routine rather than an event.
For ideas, see sharing mystery shop results with your sales team.
If you are still deciding whether mystery shopping is right for your store at all, our complete guide to dealership mystery shopping in Canada is a good place to start.
Lock is a dealership mystery shopping company based in Calgary. Our shoppers call your sales line and send internet leads like real buyers, at dealerships across Canada, then send you the recording, the scorecard and the details, ready for your sales meetings and one-on-ones. How it works.