Example: Update Cascading Select custom field with a value of the field in parent issue
You can use Copy parsed text to a field post-function (provided by Jira Workflow Toolbox) to copy the value of Cascading Select custom field from parent issue into child issue. This post-function should be used in the workflow of child issue.
Let's suppose we have a Cascading Select field called "Country and City" with field code %{50901} (this code depends on each particular Jira instance), the you should use the following configuration. We are composing a text with parent and child values of cascading select field in parent issue, separating both values with a comma character. Writing this text into cascading select field of current issue (child issue) will update its value.
