WhatsApp now lets you delete messages you sent by mistake but...
You only have 7 minutes and both user need to have to the updated app.
WhatsApp is adding the ability to delete and revoke messages after you’ve sent them, following a test of the feature for most of 2017. You’ll be able to delete messages up to seven minutes after you sent them, and they’ll disappear from conversations or group chats. A new WhatsApp support article, spotted by The Next Web, reveals that both sender and receiver will need the latest WhatsApp for this feature to work. The feature is rolling out gradually to WhatsApp users this week.
To delete messages you’ll get a new option after you select delete, allowing you to “delete for everyone” instead of just from your own device. While the feature appears to be rolling out, it’s not fully live just yet. WhatsApp does warn that “recipients may see your message before it's deleted or if deletion was not successful,” so it’s not a guarantee. It’s also possible that WhatsApp users will still see messages in notifications before they’re deleted.
Either way, this is a good addition for those mistaken messages or alcohol-induced ones. Just remember it might not always work, and WhatsApp won’t notify you if it does fail.
When you inevitably have to use this new feature , Here’s how it works
Open the app and navigate to the chat where you can find the message you want to delete.
Tap and hold the message.
A menu will pop up – choose Delete. You can also select more than one message to delete at the same time.
After tapping Delete, tap on Delete for Everyone.
If you don’t have the feature yet, don't worry – WhatsApp‘s is taking it's sweet time to roll it out, so you may get it soon. A reinstall of your WhatsApp app might just do the trick though.
