Interesting problem...
I'm working on a project where I need to import a significant number of Contacts. The problem being, a large percentage of these Contacts already exist in CRM. I've just done a trial run, and out of 80k Contacts, 38K failed as they already existed. The import needs to change specific properties on the Contact whenever we run it.
I understand that there's no way to do this using out of the box functionality. Can anyone recommend a 3rd party solution or some other way of achieving the desired outcome?
Thanks in advance!