If you are receiving the error "Unable to save announcement" when creating an announcement, check the length of your title and announcement body.
The error message "Unable to save announcement" appears when the character limit in either the "Title" or "Announcement Body" fields have exceeded the allowed number of characters. The "Title" field may not exceed 100 characters, and the "Announcement Body" field may not exceed 65,000 characters. Check the length of your Title and Announcement Body and adjust as needed to fit the character limits, then select Submit.