Automation - Check if previous value is blank

[Andy McCormick]

It's quite simple to check if the current value of a field is blank. However, I'm trying to run automation only if the value was previously not empty. In this case the Due Date.  Am I missing something obvious? 

In the Issues Field Condition, you can only select the field as it currently is after the change. I tried using JQL with `{{fieldChange.from}} != ""` and `{{fieldChange.fromString}} != ""` which both resulted in errors. 

[Bill Sheboy · Accepted solution]

Hi @Andy McCormick 

I do not believe you can use fieldChange or changelog that way in an issues field condition with JQL.  Would you explain what your JQL is trying to test?

In the meantime, this would test if the triggering issue had a previously 

• advanced compare condition
  • first value: {{#changelog.duedate}}{{fromString}}{{/}}
  • condition: does not equal
  • second value: leave this empty

Kind regards,
Bill

[Andy McCormick]

perfect. Thanks!