The Online Trade Show contact email is the email any connection requests will be sent to when retailers submit them. This can be updated in your brand settings.
Head to Admin > Settings and select Brand Settings.
Under Contact Info, you will see a field labeled "Emails". This is where you will enter the emails you would like to receive the Online Trade Show connection requests. If you'd like to enter more then one email, you will separate the email with a comma.
Be sure to save your work before leaving the page.