Store UTM parameter as hidden form fields and sync them to SFDC
Hey everyone,
we are capturing UTM parameter in hidden form fields and have created 3 new fields in SFDC to store those values.
I am seeing the 3 new SFDC fields in Database-Management > Field Management > Field Management

but when I want to map them to Marketo fields in Field Management> Field Mapping the 3 new SFDC fields don't show up.

What could be a possible reason for that?
Am I missing a step?
I am pretty new to this and thankful for any help!