We've been conservative in opening up SFDC fields to sync to Marketo and in creating new Marketo-native fields. My understanding from Marketo is that the more fields we create, the heavier the database gets... resulting in various operations getting slower.
So I'm wondering how conservative I really need to be, since I don't really want to hinder marketing operations just for the sake of database efficiency. But I also don't want to hinder marketing operations by having an inefficient database. 🙂
So I'm curious how many fields others have (and I guess it's important to note how many records you have), and if you've noticed performance hits as you've added them in.
Any input on any of this is very welcome. Thanks!