Workplace by Facebook is a popular corporate collaboration and networking software platform. It uses your email address as your primary datapoint to identify a user.  This means if your company is using Workplace, users can't use their company email address to log into the AFLI platform - it's already associated with that corporate domain. Attempting to log in using that email address would simply take the user to their corporate Workplace, not the AFLI Workplace.  

And for Fellows who are considering using Workplace for their companies in future, to avoid complications we would strongly recommend not using a company email address. 

For these reasons, Fellows should preferably use a personal email address for their activities in Workplace.