If you want to delete all of your messages with OfferUp, there are a few different ways to go about it. The first way is to go to the OfferUp app and select Messages from the main menu. Once you’re in Messages, select the message you want to delete and press the Delete button. If you want to delete a specific message but don’t want to delete all of your messages with OfferUp, you can do this by opening the message in a separate app and pressing the Delete button there. Finally, if you just want to remove a specific message from your inbox without deleting any other messages, you can do this by opening your inbox in Gmail or another email app and selecting the message you want to remove. Then press the Trash button on the bottom right corner of the screen. ..