How do I count the number of listed values for a field?

[Jon Jain]

I'd like to use automation to automatically update a field with the count of items selected within a multi-value list. I see that I can list the values with smart values, but how do I sum those into a count?  

[Trudy Claspill · Accepted solution]

Hello @Jon Jain 

Welcome to the community.

I found a post from @Abby Kaske  that mentions something that might work.

https://community.atlassian.com/t5/Jira-questions/Order-by-count-of-items-in-custom-field/qaq-p/1188981

{{issue.customfield_XXXX.size}}

[Jon Jain]

yes this worked, thanks!