I am working in a Marketo clean up requirement, where I am trying to find all the fields mapped in SFDC but never used in any smart campaigns in Marketo.
There are 1500 fields in total and manually looking at them is tedious and time-consuming. What is the best way to do this?
I have tried exporting all fields but nowhere it mentions if it is used or not used?
Please, let me know the best practice to find out this?