Import additional property

[Phil_Vallender · Accepted solution]

Hi @howardmarxb

I'm not sure that I fully understand, so forgive me if this is on the wrong track, but when importing new data that relates to existing contacts, its important that your import file (CSV) has the contact's email address in it. This is how HubSpot identifies contacts and deduplicates imports. 

Hope this helps.

[danielbenchi]

I need to add instead to replace a property in a contact when make an import. Is it possible?