The first reply decides most of it
A patient messaging about a procedure has almost always messaged two or three clinics in the same minute. Whoever answers first with a real answer usually gets the appointment, regardless of who has the better surgeon. That is uncomfortable and it is how the market works.
So the first message out should never be "we will get back to you". It should confirm you can help, give the price band or the next step, and offer two specific times. An automated first reply that does that, day and night, is the single highest-return thing most clinics can install this month.
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Business app or API — which you need
The free Business app is enough for a single doctor: labels, quick replies, away messages and a catalogue. It breaks when several staff need the same number, when you want message templates for reminders, or when you need to see who replied to what.
At that point the WhatsApp Business API gives you a shared inbox, automated confirmations and reminders, and proper reporting. The decision point is usually staff count and volume rather than clinic size, and moving later is more painful than starting right.
Three scripts every clinic needs
The price question: the band, what changes it, and two appointment times — never a bare number and never a refusal to answer. The clinical question: acknowledge, decline to diagnose over text, offer the consultation. The follow-up: a short, useful message on day three to anyone who asked and did not book.
Write all three in Arabic and English, save them as quick replies, and make sure every person with access uses the same words. Consistency here is worth more than clever copy — it is what stops one receptionist quietly costing you a third of your enquiries.