Quick answer: Screen for people who bought your category on at least one marketplace in a recent window, set quotas that allow for people who use several platforms, and then map the journey in stages: trigger, discovery, evaluation, cart and checkout, and after purchase. Ask about vouchers, reviews, official stores, platform switching and abandoned carts, and keep the questionnaire short and mobile-first.
Start with behaviour, not demographics. The study is about people who recently bought your category online, so the screener should confirm a purchase in the category on a marketplace within a defined window. Three months is a common recall period for fast-moving categories, because people remember recent purchases well.
Define the platforms clearly in the screener. Shopee, TikTok Shop and Lazada all sell the same categories, and many shoppers use more than one. A person who bought on two platforms should be asked about both, not forced to pick one.
Platform quotas get awkward because the groups overlap. If you set exclusive quotas by main platform you will force people into boxes that do not match their behaviour. A better approach is to set minimum completes by any use of each platform, and accept that one respondent can count towards several.
Add the usual demographics, such as age, gender and region, as soft targets unless you need to read them separately. Our survey sample size guide covers how large each group needs to be if you want to cut the results by platform.
| Stage | What to ask | Why it matters |
|---|---|---|
| Trigger | What prompted the purchase: need, promotion, recommendation, content | Shows whether demand is planned or impulsive |
| Discovery | Where they first saw the product: search, feed, livestream, friend | Tells you where to be visible |
| Evaluation | What they checked: reviews, price, ingredients, proof of results | Shows what earns trust |
| Cart and checkout | Vouchers, shipping, bundles, store choice | Reveals the conversion levers |
| After purchase | Delivery experience, satisfaction, repurchase intent | Shows what drives repeat buying |
Keep each stage to a few well-chosen questions. The aim is a clear picture of the path, not an exhaustive list of every behaviour.
A few features shape behaviour and deserve their own questions, although exact mechanics vary by platform.
Descriptive questions tell you what happened. Driver questions tell you why, and those are the ones that change decisions.
If your category also has lapsed buyers, our guide on surveying lapsed users shows how to find out why they left.
Cut the data by platform, by how many platforms each person uses, and by planned versus impulse purchases. A useful comparison is how a brand ranks in awareness against how it ranks in recent purchase. A brand that is lower on awareness but higher on purchase converts well once people consider it, so the priority is reach. A brand with the reverse pattern has a conversion problem to fix.
Remember base sizes. Once you cut by platform and by segment, groups can become small quickly, so read small groups as directional and flag them in the report.
A short pilot with a small group, read on a phone, usually catches unclear wording and awkward routing before the full launch.
We build Vase.ai, a research platform with a verified panel of SEA consumers, quota controls and display logic that suit marketplace shopper studies.
For the wider design behind this kind of study, our guide to running a usage and attitude study in Southeast Asia shows how to combine behaviour and attitude questions in one survey.
How recent should the purchase be for a shopper journey study?
Three months is a common norm for fast-moving categories because memory of the purchase is still clear. For higher-value or less frequent purchases, a longer window may be needed, but recall becomes less reliable as it stretches.
Should I study each platform separately?
Usually one survey with platform use as a screening and reporting variable works better, because many shoppers use several platforms. Run separate studies only if you need deep detail on one platform or have very different audiences for each.
Can I include livestream and group buying questions for everyone?
It is better not to. Use display logic so only people who have used them answer, and keep the questions short. Asking non-users produces guesses that add noise.