Q: Can multiple Customer Managers share the same email address?
A: You can modify the email address to make multiple unique accounts.
Say for instance two Customer Managers would like to share the email address "manager@golfclub.com".
One Customer Manager can register with "manager@golfclub.com". The other Customer Manager can register with "manager+1@golfclub.com". Everything after the plus (+) sign we view as extra information, and we ignore it when sending the email. This way, both Customer Managers can have the same email address, but remain unique in our system (with a different passwords).