WhatsApp Buttons, List Messages and Carousels: Limits and Examples

WhatsApp has two families of buttons. Interactive messages (reply buttons, lists, a URL button, a location request, media carousels) can be sent only while a customer’s 24-hour window is open. Template buttons (quick replies, website, call, copy code) are part of an approved template, so they also work when you message someone first.

The limits are strict: 3 reply buttons, 10 list rows, 10 template buttons, and button labels of 20 to 25 characters. This guide lists every limit from Meta’s documentation as of October 2026, shows when to use which, and gives examples you can adapt.

Interactive messages vs template buttons

Meta’s rule is simple: after the customer service window closes, “you can only send pre-approved template messages”. So a chatbot menu uses interactive messages, while a campaign or reminder that opens a conversation uses a template.

Reply buttons: up to 3 quick answers

• Up to 3 buttons, each title up to 20 characters and unique.
• Optional header: text, image, video or document. Body up to 1,024 characters, footer up to 60.
• When tapped, the button title comes back to you as the customer’s reply, with the button ID you set.

Example (clinic): “Your appointment is on Thursday at 11 AM. Do you want to keep it?” [Confirm] [Reschedule] [Talk to us]

List messages: a menu of up to 10 options

• Up to 10 rows in total, grouped in up to 10 sections.
• Row title up to 24 characters, row description up to 72; section titles up to 24.
• One menu button with text up to 20 characters, such as “See options”.
• Header is text only (60 characters); body up to 4,096 characters.

Example (coaching institute): “Which course are you interested in?” [See courses] → Class 10 Science · Class 12 Maths · JEE Foundation · NEET Crash Course. Use a list when you have 4 to 10 choices; for 2 or 3, reply buttons are faster to tap.

Other interactive types

Template buttons: what you can add

A popular combination for offers is a URL button to the product page and a “Stop promotions” quick reply, which gives people an easy way to opt out. See WhatsApp opt-in.

Carousel templates

• Marketing templates only, with 2 to 10 cards fixed when you create the template.
• Each card has an image or video header and up to 2 buttons (quick reply, URL or phone); every card must use the same button types.
• Card text up to 160 characters; the message above the cards up to 1,024.

Example (fashion store): “New festive arrivals are here” with four cards: Silk sarees · Kurtas · Lehengas · Accessories, each with [Shop now] and [Stop promotions].

Writing good buttons

1. Start with a verb: “Book a slot”, “Track order”, “Talk to us”.
2. Stay under the limit with room to spare; long labels get cut on small phones.
3. Always give a way to a person in chatbot menus. WhatsApp’s policy requires a clear path to a human in automated chats.
4. Use button IDs you can read in your reports, such as confirm_appt, not “button1”.
5. Measure taps. If nobody taps an option, remove it.

Buttons and lists in Automate AI

• Templates: add quick-reply, website, call and copy-code buttons, or build carousels, with a live preview and Meta’s approval status. See WhatsApp marketing.
• Chatbots: the flow builder sends reply buttons and lists and branches on the option a customer picks.
• Button Clicks: see who tapped which template button and URL, and send a follow-up to just those people.