Marketing Suspended Cause not accessible in flow
I inherited a Smart Campaign where Marketing Suspended = True is being set for leads.
I have an adjoining campaign that is setting a new Milestone with a status that they were suspended.
However, I know there is a Marketing Suspended Cause field, but at the same time I am unable to add it to the flow of my original Smart Campaign.



I've had a colleague on another instance confirm this inability to change the value of Marketing Suspended Cause?
In addition I would like to know how, if possible, one can update this field!
Are there automated processes that would update this field that are outside 'our' control?
I wonder if the other "cause" fields behave the same...
Thanks in advance!