29 Jul Why Shopee & Lazada’s 180-Day Retargeting Advice Is Wrong (Meta Ads)
Over-retargeting is a real, common mistake — and it’s made worse by the fact that it’s sometimes taught directly by the marketplaces themselves. One seller running CPAS ads for a Shopee store followed Shopee’s own official seller training, which recommended retargeting for 180 days. The result wasn’t more sales — it was poor performance and inflated frequency, because 180 days is far longer than most buying intent actually lasts.
The concept that explains why this fails: the conversion window
Buying intent has an expiry date. When someone develops an intention to buy something, they tend to make the decision within a fairly short window — and after that window passes, continuing to show them the same offer isn’t rekindling interest, it’s just reaching someone who’s already moved on.
Research on buying decisions gives a useful reference point: for many common purchases, that window is often as short as around 2 days. For pricier, more considered items, it can extend further — commonly up to about 7 days — but rarely much beyond that. A 180-day window isn’t a longer version of the same strategy; it’s targeting people well outside any period where their original intent is still relevant.
How this fits with a 7-14 day general recommendation
A commonly used general retargeting range is 7-14 days, and that’s still a reasonable starting default for most ecommerce accounts. What this adds is a more precise way to tune within that range: for common, lower-consideration products, the actual conversion window may be closer to 2 days, meaning even the lower end of a general 7-14 day range could be longer than ideal. For pricier or more considered purchases, stretching toward 7 days (or the upper end of the general range) is more defensible, since the decision genuinely takes longer to make.
The takeaway isn’t “always use exactly 2 or 7 days” — it’s that the right window depends on how quickly people actually decide to buy your specific product, and a generic default across every account misses that distinction.
Why marketplace platforms sometimes get this wrong
It’s worth being skeptical even of advice that comes from an official, seemingly authoritative source — a marketplace’s own seller training isn’t necessarily built around the same rigor as buying-behavior research, and a longer retargeting window can look intuitively safer (“more time to catch buyers”) without actually reflecting how intent decays in practice. If you’re a marketplace seller and you’ve been following a long retargeting window because it was recommended in official onboarding material, it’s worth reconsidering against your own actual conversion window rather than assuming it’s correct because of where it came from.
What to actually do
- Estimate your product’s real conversion window — how quickly do people typically decide once they show interest? Lower-consideration items: closer to a few days. Higher-consideration items: potentially closer to a week.
- Set your retargeting window to match that window, not a generic long default.
- Watch frequency as a signal — an unusually high frequency on a long-running retargeting audience is often a sign the window has run well past the point of diminishing returns.
- Don’t assume longer is safer — a shorter, well-targeted window that matches real buying behavior generally outperforms a long one that spends budget reaching people who’ve already moved on.
This breakdown is written by Jason Gan, a Meta Certified Professional and Badged Meta Business Partner who has personally audited over 1,000 advertiser accounts since 2010. You can see real account breakdowns on the Jason Gan YouTube channel.
Frequently Asked Questions
Is 180-day retargeting a good idea for Shopee or Lazada sellers? Generally, no. Even though this duration has been included in some official marketplace seller training, most buying intent expires well before 180 days, which means a window that long usually results in poor results and inflated frequency rather than more sales.
What is a ‘conversion window’ in Meta ads retargeting? It’s the period during which someone’s intent to buy a specific product is still active before it expires. Research on buying decisions suggests this window is often as short as around 2 days for common, lower-consideration purchases, extending to roughly 7 days for pricier or more considered items — rarely longer than that.
How long should my retargeting window actually be? A commonly used general range is 7-14 days, but the right number within — or even below — that range depends on how quickly people typically decide to buy your specific product. Common, low-consideration purchases warrant a shorter window; pricier, more considered purchases can reasonably extend closer to the upper end.
If you’re not sure your retargeting window matches how your customers actually decide
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