I have a custom field "Participants of an issue" with a user list
The goal is to show the sum of those users and if a new user was added to the list, then +1 to the sum.
Caveat: "Participants of an issue" is a string field. I assume I need to convert it into a number and create automation based on it.
I created a "participants_sum" custom field, set the default value to 0. The field is supposed to store the sum value.
I think what I need to do next is to create a new variable inside the rule to convert string to a number (https://community.atlassian.com/t5/Jira-articles/Automation-for-Jira-Create-variable-New-component/ba-p/1448118) but not sure how to implement that.