I have a spreadsheet of new contacts I need to add to Salesforce and subscribe to a range of groups in Emma. What's the best way of doing this? From what I've been told, importing a new list into Emma WON'T sync with Salesforce once the integration is complete. If that's true, how can I import new members without having to add them one by one to Salesforce and then add each new group membership one group, one contact at a time? There's got to be a better solution!