Reading Shopee and Lazada windows without fitting a single sale

Malaysian campaign calendars are loud. 9.9, 10.10, 11.11, 12.12, plus brand days, plus Ramadan nights, plus Chinese New Year when the catalog is food or home. A bundle that ‘works on 11.11’ has not yet told you much. Almost every combo with a visible discount will move when the app is already full of red tiles.

We ask merchants to nominate three stretches: the window they care about, a comparable window from a previous year or month if they have it, and a quieter fortnight that is not a festival. The quieter stretch is not a moral high ground. It is the place where you see whether a companion still joins when the shopper is not being shouted at.

Shopee and Lazada do not timestamp ‘bundle intent’. They timestamp orders. If your export has a combo ID, we use it. If it does not, we reconstruct likely pairs from SKUs that share an order and a campaign tag, and we say so on the canvas as a reconstruction, not as a fact. Mixing those two qualities of evidence is how a single sale gets over-fitted.

We also refuse to treat 11.11 week as a forecast for January. Shops that keep CNY tins or Raya hampers need those windows named separately. Averaging them with a mid-year brand day hides the seasonality you already feel in the warehouse.

If you only have extracts for the sale itself, say so. We can still mark what happened inside the noise. We will not pretend we know what the pairing does in a quiet week.