In order to choose which logo to use in your Emergency Bulletin, follow these steps:
  1. Navigate to onMessage > Website > Main Site > Styles
  2. Click on Emergency Bulletin at the top of the page​ The Emergency Bulletin Style button is between the "Global Site Style" and "Mobile Menu" buttons on the styles tab
  3. Click on the logo in the style 
  4. On the left side, use the Logo drop down to select which logo to display in the Emergency BulletinLogo drop down is in the tools on the left side
  5. Click Save in the bottom right corner

Note: If you want to use a logo you have not yet uploaded, you can do so on Core > Settings > Logos and Seals