Do you notify others when changing a chat message?

Editing a chat message is useful for fixing mistakes or clarifying information. However, changing a message after someone has read or reacted to it can cause confusion.

Most chat applications, including Microsoft Teams, give a subtle indication, but do not send a new notification when you edit a message. This means someone may continue working with outdated information without realizing it has changed.

When making a meaningful change, make sure others know about it. If someone has already reacted to your message, leave the original unchanged and send a new message instead.

When should you edit a message?

• Minor typo or formatting fix - Edit the message without sending a notification if the meaning stays the same
• Message not yet read - You can edit it without notifying others, provided nobody has already responded or reacted
• Meaningful change to a message already read - Edit the message and send a follow-up explaining what changed
• Message already reacted to or answered - Leave the original unchanged and send a v2 instead

Notify others when you make a meaningful change

If you edit a message that changes its meaning, instructions, or important details, send a follow-up message explaining what changed.

For example, imagine you send a message asking someone to review a PR, but later realize the PR is not ready.

❌ Figure: Bad example - The message was silently edited, so someone who read the original may start reviewing a PR that is not ready

✅ Figure: Good example - A follow-up message makes the change visible and explains why the original instructions no longer apply

Never change the meaning of a message after someone has reacted

A reaction, such as a 👍, is feedback on the message as it was originally written.

If you change the meaning of that message afterward, the reaction may appear to support something the person never intended.

❌ Figure: Bad example - Editing the ambiguous question can change Adam's 👍 intention (e.g. Adam may have agreed that the TinaCMS work should be omitted

✅ Figure: Good example - The original question is preserved, while a new v2 allows Adam to react to the correct option