Use this method if you want to delete contacts from Messenger that were added from your iPhone or iPad contact list, not through Facebook.
If you unfriend someone on Facebook, they’ll no longer show up in your People list in Messenger. This also prevents the person’s new posts from appearing in your regular Facebook feed.
This method will help you block a contact on Messenger without unfriending them on Facebook. The person you block will no longer be able to contact you or see you online. [1] X Research source They also won’t appear on your Messenger contact list. The person will not be notified that you’ve blocked them, but they will see an error when they try to message you.
If you decide to unblock the person in the future, tap your profile image at the top-left corner of the Chats tab, tap Privacy, select Blocked People, select the person you want to unblock, and then tap Unblock on Messenger. [2] X Research source
