Find and fix messages that did not send

In this video, you'll find messages that didn't send, and learn what to do about each one. In Inbox, a red number on this button means some messages failed. Click it. Each row shows who it was for, and the reason in plain words. Click a reason to see what to do next. Siddharth's reply missed the 24-hour window. Once he writes again, click Send again. A temporary Meta error is worth another try. Click Retry to send it again. If there's nothing more to do, click Dismiss to take it off the list. For more short guides, look for the Watch how button at the top of the page.