Dynamic ("Calculated") Values in Campaign Actions

This would be a great feature.

Some of the use cases of calculated fields I can think about are as follows:

  1. A formula field that could do a timestamp on a field when another field changes
  2. A formula field that could follow a logic of if, then…
  3. A formula that could do math operation (+,-,*,/) as well as functions like SUM, AVG, MEAN, MEDIAN