You can edit a recently sent message up to five times within 15 minutes of sending it. If the person you’re messaging is using a device with iOS 16 or later, iPadOS 16 or later, or macOS Ventura, the message bubble is updated to reflect your edits on their device, and both of you can tap Edited to see previous versions of your message.
Edit sent messages
In Messages, select a conversation with the message you want to edit
Touch and hold the message bubble, then tap Edit
Make any changes, then tap the Accept Changes button to resend with edits or the Cancel button to revert
If the person you’re messaging is using a device with iOS 15.6 or earlier, iPadOS 15.6 or earlier, macOS 12 or earlier, or is using SMS, they receive a new message with your updated text.