Post-Purchase Survey

A post-purchase survey is the how-did-you-hear-about-us question at checkout, an independent, platform-agnostic cross-check on where your sales are really coming from.

You get one number from Meta, another from Google, and a third from your store dashboard, and they never agree. Every platform has a reason to claim the sale. A post-purchase survey sidesteps all of that by asking the one person who actually knows: the customer. Right after they buy, you show a short how-did-you-hear-about-us question, and their answers pile up into a rough map of demand that no ad platform gets to grade.

You use it as a reality check against the dashboards. If Meta swears it drove the month but most buyers type Instagram, a friend, or your newsletter, you learn something the pixel will never tell you. It earns its keep on the channels that report badly on their own, like word of mouth, podcasts, or an influencer whose link nobody clicked. Those show up in a survey even when they are invisible in your analytics. Keep the question simple and let it run on every order, because the value is in the volume of answers over time, not any single one.

The honest catch is that it is self-reported and biased. People forget, they credit whatever they saw last, and they lump every channel under one familiar name. Treat it as directional triangulation, a way to sanity-check the platforms against each other, never an exact number you can defend to the decimal.

The platforms all argue over the sale; the survey just asks the person who made it.