---
title: "Add Zalo, Messenger and a hotline"
description: "Build the widget picker screen: an opening line and up to six routes — Zalo, Messenger, a hotline or any link — each with its own icon and address."
updated: "2026-08-28"
audience: [administrator]
source: "https://helpdesk-docs.svr1.feedapp.click/en/widget/kenh-lien-he-khac"
---

Not every visitor wants to type into the panel. The widget has a picker screen
where you can offer Zalo, Messenger, a hotline number or any address alongside
**Live chat**.

## Goal [#goal]

A visitor opening the widget sees a picker with your opening line and up to six
routes, each carrying an icon and an address.

## Before you begin [#before-you-begin]

* Permission to edit channels in this workspace, meaning the administrator role or its equivalent.
* The address for each route: a Zalo OA link, a Page `m.me` link, a hotline as `tel:`, or any web address.
* Your own icon files, if the built-in set does not cover a route: PNG, JPG or WebP, up to 256KB.
* A page already carrying the widget, so you can try the picker after saving ([Embed the widget on your website](/en/widget/nhung-vao-website)).

## Steps [#steps]

1. In the left column press **Channels**, open the website widget channel, pick the
   **Widget Chat** tab and scroll to **Other contact channels**.
2. Write the **Channel picker message**. Left empty, the widget falls back to its
   own translated wording.
3. Press **Add channel**. An empty row appears with an icon box, a name field and
   an address field.
4. Press the icon box at the start of the row and pick from the grid. The last
   entry, **Upload image…**, takes an icon of your own.
5. Fill in **Display name**. The channel name alone — "Zalo", not "Chat on Zalo" —
   because the widget builds the sentence around it.
6. Fill in **Link**. The address must start with `https://`, `http://`, `mailto:`,
   `tel:` or `sms:`; the server rejects anything else.
7. Repeat for each route, up to six. Use the **Move up** and **Move down** arrows
   at the end of a row to set the order visitors see.

   ![The Other contact channels block with the picker message field above and two channel rows below, one for Zalo and one for a hotline, each with an icon box, display name, link and three ordering buttons](https://helpdesk-docs.svr1.feedapp.click/images/docs/widget/kenh-lien-he-khac/07-danh-sach-kenh.en.webp)

   *Two routes declared, with the reorder and delete buttons at the end of each row.*
8. Press **Save Settings**. A row missing either its name or its address is
   silently dropped on save.

> **Note:** With an empty list the picker never appears, and a visitor opening the widget
> lands straight in the chat panel. That is also why the feature has no on/off
> switch of its own: adding the first route is what turns it on.

> **Warning:** Every address you enter becomes a link on a customer's website, so the server
> re-checks each string rather than trusting the form. Uploaded icons are
> limited to PNG, JPG and WebP: SVG is refused, because an SVG opened directly
> on the storage host can run script there.

## Verify [#verify]

Reload the website carrying the widget and press the launcher. The first screen
must be the picker, showing your opening line, the **Live chat** entry and the
routes you declared in the order you set.

Try one route: the browser must open the address you entered, in a new tab. Back
in the console, reopen the **Widget Chat** tab and confirm the rows survived the
page reload.

## Troubleshooting [#troubleshooting]

| Symptom                            | Cause                                                                     | What to do                                       |
| ---------------------------------- | ------------------------------------------------------------------------- | ------------------------------------------------ |
| The picker screen never appears    | No route was saved, or the declared rows are missing a name or an address | Fill in both fields on every row and save again  |
| A route vanishes after saving      | That row had an empty field, so it was dropped on save                    | Re-enter the row with both a name and an address |
| The address is rejected            | The string does not start with one of the accepted prefixes               | Rewrite it as `https://`, `mailto:` or `tel:`    |
| An uploaded icon does not show     | Wrong file type, or larger than 256KB                                     | Export the image as PNG or WebP under 256KB      |
| The **Add channel** button is gone | Six routes are declared, which is the picker's ceiling                    | Delete a row, then add the new one               |

## Next steps [#next-steps]

* [Customize color, position and greeting](/en/widget/tuy-bien-giao-dien)
* [Allow anonymous chat, or require a sign-in](/en/widget/chat-an-danh-hay-bat-dang-nhap)
* [Shared inboxes and channels](/en/khai-niem/inbox-va-kenh)