Import contacts, with existing HubSpot details as the master
I have many contacts already in my HubSpot database, but also have lots of contacts in a legacy CRM system. I want to export from the legacy system and import into HubSpot, but as the import is coming from an old system I want any data already in HubSpot to be considered the master (so not overwritten by the import).
Perhaps on each field in the import you could say whether it should overwrite existing data in HubSpot.
This would allow me to easily migrate all my contacts from my legacy CRM without worrying about old data overwriting my more up to date HubSpot data.
I would also like to be able to import contacts, but choose that any that already exist in HubSpot be excluded from the import.