# Text messages | Developer Documentation

<div id="bkmrk-text-messagesupdated">## Text messages

<div><span>Updated: Nov 3, 2025</span></div><div>Text messages are messages containing only a text body and an optional link preview.</div><div>![](https://support2.chatarchitect.com/uploads/images/gallery/2026-04/embedded-image-de0wm2g1.png)</div><div id="bkmrk-link-preview"><div id="bkmrk-link-preview-1"><div>### Link preview

</div></div></div><div>You can have the WhatsApp client attempt to render a preview of the first URL in the body text string, if it contains one. URLs must begin with `http://` or `https://`. If multiple URLs are in the body text string, only the first URL will be rendered.</div><div>If omitted, or if unable to retrieve a link preview, a clickable link will be rendered instead.</div></div>