WhatsApp is improving shopping experiences for both e-commerce merchants and their customers through a new feature called Flows. The add-on lets WhatsApp users complete tasks such as booking a seat on a flight or making an appointment without leaving the messaging app.

When using Flows, merchants will benefit from tools such as text boxes, calendars and a seat picker. These features will allow e-commerce companies to build rich experiences while improving booking and payment workflows. The Flows support page gives multiple examples of how the new service can be used, including booking appointments, product customization, account logins, form filling, and signing up for events.

WhatsApp said it had been testing Flows with businesses including Brazilian bank Banco Pan, retailer MagaLu, tech giant Lenovo, Indian travel service redBus, and car-reselling platform Spinny.

“Shopping and e-commerce is one of the biggest verticals we want to focus on. The goal is to enable business messaging in a way that businesses and people can do a lot more right in the chat thread. We are trying to build rich experiences within the chat, and that’s where Flows comes in,” said Nikila Srinivasan, Meta’s VP of business messaging.

Flows will become available over the coming months, and Meta will not initially charge merchants separately for the service. Currently, only e-commerce businesses can utilize Flows’ features, though WhatsApp has plans to develop rich experiences for other business verticals as well.

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Earlier this year, WhatsApp’s business app surpassed the 200 million monthly active users mark. The messaging company said it had also started testing a personalized messages feature for merchants, which was announced this June. The service lets businesses send custom notifications such as discounts or offers to select patrons.