What small business buyers are actually deciding
Nobody sets out to make WhatsApp their main sales channel. It happens because customers prefer it, and one day the business notices that most of its enquiries, quotes and complaints are living inside chat threads on staff phones. The decision on the table is not whether to use WhatsApp. It is whether the business owns that channel or an individual member of staff does.
That framing settles most of the feature debate. What you need is a business number, a shared inbox, an owner on each conversation, and a record that survives someone leaving. Everything else, including automation and templates, is useful but secondary to that shift in ownership.
The three costs of a personal number
First, invisibility: nobody can say how many enquiries arrived or how many were ignored. Second, inconsistency: prices and promises vary by whoever answered. Third, loss: when the person moves on, the relationship history goes with the handset, and customers notice that the new person has no idea what was agreed.
Speed of first response is the whole game
On a messaging channel customers behave as though they are in a shop. A reply in ten minutes feels normal; a reply the next morning feels like being ignored, and by then they have messaged two competitors. Measuring first response time is usually the single most valuable thing a small business gains from putting WhatsApp into a CRM.
