# Button limits

## Facebook & Instagram

{% hint style="warning" %}
Facebook and Instagram have limits on the number of buttons: 12 reply (regular keyboard) buttons and 3 inline (in-text) buttons.
{% endhint %}

In Instagram, links can only be placed in inline buttons.

The maximum number of characters in a button name is 23. If there are more, Facebook trims the text after 23 characters and adds an ellipsis.

## Viber

{% hint style="warning" %}
Viber has limits on the number of buttons: 24 reply (regular keyboard) buttons and 7 inline (in-text) buttons.
{% endhint %}

Viber allows you to use a lot of characters in the button name. However, keep in mind that long text will wrap to a new line, and some of the text may be hidden or pushed onto the neighboring button.

## Telegram

The maximum number of characters allowed in button names is 32. If there are more, Telegram cuts out a portion of the text in the middle and inserts an ellipsis.

## TikTok

***Button messages are not available on TikTok Desktop.*** In the desktop chat, you will see a notification stating: "This message format is not supported."

The following button types are available, each with distinct behaviors and limitations:

**1. Callback button**

* **Appearance:** a standard interactive button.
* **Action:** When clicked, it sends a message in the chat (on the user's behalf) containing the button's text.
* **Source:** the text is taken from the **"Reply message text"** field in the button settings.
* **Text limit:** **20 characters**.

**2. URL button**

* **Appearance:** a button styled as a link.
* **Action:** *currently, it behaves identically to a callback button.* **Please note:** TikTok does not support opening URLs in a web view; clicking the button will only send the button's text as a message.
* **Source:** the text is taken from the **"URL"** field in the button settings.
* **Text limit:** **40 characters**.

{% hint style="success" %}
Learn more about using [callback buttons](/chatbot/builder/buttons.md#how-to-add-a-callback-button-facebook-telegram) in MaviBot here.
{% endhint %}

## Inline and reply simultaneously

You cannot send both types of buttons in the same message.

{% hint style="info" %}
[Read about how to combine both types of buttons in a Telegram bot here](#inline-and-reply-simultaneously)
{% endhint %}

In summary, we've explored how to easily create buttons for various messengers using the MaviBot builder—a key step in building fully functional bots.


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