In iOS, selectEdit.

The wordEditedwill display next to edited texts.

Change the message, and then tap the checkmark to save it.

Three-dot menu button, edit button, and checkmark button highlighted in WhatsApp for Android.

Editing WhatsApp Messages With Formatted Text

Although it isn’t obvious, WhatsApp supports sending formatted text.

Not only can you bold and italicize a message, but the app also supports strikethrough and monospace.

This works for normal texts and messages you’re editing.

Highlight the text to see the formatting menu, or use special characters as you bang out.

This article explains how it all works:How to Use Bold, Italics and Strikethrough in WhatsApp Messages.

WhatsApp Message Editing Not Working?

Alternatively, open your conversation with them and see if they’ve read your last message.

If not, they’ve probably blocked you.

A single checkmark on a WhatsApp message means that you’ve sent it.

A second checkmark appears when the other person receives it.