Why Malaysian SMEs lose 6 in 10 WhatsApp leads after 6pm

We logged 4,200 enquiries across nine retailers for a month. The pattern was blunt: reply speed, not price, decided who won the order. Here is the data and what we changed.
The 4,200-enquiry dataset
We pulled every inbound WhatsApp message across nine retailers over a full month: two furniture shops, three F&B outlets, two building-supply wholesalers and two fashion resellers. Every enquiry was tagged with the time it arrived, how long it took to get a reply, and whether it turned into an order.
The split was stark. Enquiries answered within two minutes closed at 41%. Enquiries answered after six hours closed at 9%. Past 24 hours, the close rate was close to zero — most customers had already bought from whoever replied first.
The 6pm cliff
The biggest gap wasn't about the customer's intent, it was about office hours. Across all nine businesses, over 60% of first-reply delays longer than four hours started with a message that arrived after 6pm. Staff had gone home, and the next reply came the following morning.
By then a fair share of those customers had already messaged a competitor, or simply lost the urge to buy. Weekend enquiries had the same problem, stretched over two days instead of overnight.
What we changed
For each business we set up AI Autosales to handle the first reply around the clock: acknowledge the enquiry, ask the one or two qualifying questions specific to that business, and quote a price if the catalogue allowed it. Anything outside a set of rules got flagged for a human to pick up in the morning.
Average first-reply time across the group dropped from 3 hours 40 minutes to 12 seconds. None of the businesses added headcount to do it.