How to unblock someone on Facebook Messenger. 1. Open the Messenger app on your mobile device. 2. Tap your profile picture, which is located in a circle in the upper-left corner of the screen. 3 On the Facebook Messenger App. Open the chat with the person you want to block and tap on their name at the top of the screen. Tap Block and then change the Block Messages toggle to on. To unblock them, just flip the Block Messages toggle back to off. While you can block someone completely on Facebook, it's a pretty dramatic measure. 1. Log into your Facebook account in Desktop or Mac. 2. Click on “Messenger ” at the top of the screen. And then click on the See All in Messenger option. 3. Choose any one person to delete the chat history of that person. You can see three dots symbol at every contact. Click on that three dots symbol. Note: To remain the function of receiving Messenger messages, de-select the Opt out of receiving messages on Messenger option if it has this option. FAQs You May Want to Know About Deactivating Your Facebook Account. I am sure you still have many doubts and uncertainties about deactivating your Facebook account. Deleted messages and chats on Messenger. You can't see deleted messages or conversations. Deleting a message permanently removes it from your Chat list. Keep in mind that deleting a message or conversation from your Chats list won't delete it from the Chats list of the person you chatted with. Learn how to remove a message you've sent. If you How do I clear sold items on the Marketplace? Deleting your listing. Marking your listing as sold or pending. Tap. in the top right of Facebook. Tap Marketplace. If you don't see. Tap in the top left. Tap. next to the listing, then tap Delete item. .

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