> ## Documentation Index
> Fetch the complete documentation index at: https://help.qrtub.com/llms.txt
> Use this file to discover all available pages before exploring further.

# WhatsApp

> How to open a WhatsApp conversation from a scan with the message already written, and the exact number format required.

```
https://wa.me/61400000000?text=Fault%20on%20PLANT-0412
```

Opens a WhatsApp chat to that number with the message already typed. The person scanning still
presses send, so nothing is sent without them.

## The number format is strict

Digits only, with the country code, and nothing else:

* **No** `+`, no spaces, no brackets, no dashes
* **No leading zero** — an Australian `0400 000 000` becomes `61400000000`
* **No** `00` international prefix either; the country code alone is enough

A wrongly formatted number does not error. It opens WhatsApp on a chat to nobody.

## Encode the words, bind only the ID

`text=` has to be URL-encoded, and QRtub does no encoding. So write the static part already
encoded, and bind only a value with no spaces in it:

```
https://wa.me/61400000000?text=Fault%20on%20{{item.itemId}}
```

`%20` is a space. Never bind a description or a note — the first space breaks the link.

## Related

* [Field Bindings & URL Templates](/destinations/field-bindings)
* [What Is a Destination?](/destinations/what-is-a-destination)