I want to basically create a log of Field A's values so that I can see a running list of a lead record's activity over time. How would I go about doing this?
Here are some helpful places you could get hints on the steps -
Permanently Recording UTM Parameters for Campaigns
How to track Forms filled out history by Leads/Contacts under your Marketo Instance?
Basically, you will be appending Field B with new values of Field A every time Field A changes.
Thanks Chirag. I took a look at the two links you provided. Very helpful, thanks!
Retrieving data ...