---
title: "Facebook Messenger: Bot Building Limitations"
description: Building a bot for Facebook Messenger? Learn the key limitations for buttons to ensure your bot works correctly, including the max number and character limits.
---

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# Facebook Messenger: Bot Building Limitations

## Before building a bot for Facebook Messenger, be aware of the platform's limitations. This article explains the rules for buttons: you can only use a maximum of three, and the text for each is limited to 14-20 characters.

In ebbot.app under Integration there is the Messenger tab. This integration enables users to chat with Ebbot through Facebook Messenger. It could build a bot in ebbot.app and publish it to a Facebook page.

If you wish to set up messenger for is bot, please contact us and we will help with the configuration.

#### Below guidelines are for you to know what to think about when building one

A couple of differences on the bot answer

***3 buttons***  
Messenger is different from how Ebbot processes messages and has some limitations that need to be considered when building a messenger bot.

You can display a maximum of three (3) buttons on an ebbot\_url card (button). If you want to give a bot answer with more than three buttons, it will not show in the chat, so remember to customize the bottom and give a maximum of three options in each keyboard if it will be published on Messenger.

***Maximum number of characters in buttons***  
The maximum number of characters a keycard can display is somewhere between 14 and 20 characters. There is no exact number as this limitation actually depends on the pixel width of the characters/button text.

Even the mouse pointer text (when you hover over a button) is shortened, so there's no way to see what's beyond the three dots at the end.

![](https://customer.ebbot.ai/hubfs/Knowledge%20Base%20Import/v6aGwlZuJ2u1HqQlhUSkUNxrooSwMHInZw-PpI.png)![](https://customer.ebbot.ai/hubfs/Knowledge%20Base%20Import/whOs66SWky1dkP5w-j9uHSUqBEupR1ixtg-Muk.png)

 

 

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