Mass update leads through import using the lead id field?

[Anonymous]

I want to update the sales owner for my leads in a mass import, but it doesn't appear that the import accepts the field ID, which is the exported field when I create alist view with the lead ID in it. How can I update leads using the lead ID field so new leads aren't created?

[Anonymous]

It seems the change owner will synch with SFDC and create a lead, regardless of the lead score. How can I just update the owner in Marketo and not create new leads in SFDC? 

[Josh_Hill13]

You cannot change the Lead Owner using this method. You can do this in SFDC or use the Change Owner flow step.