I want to check if all statuses are closed in {lookupIssues}

[koutarou ishibashi]

Using JIRA automation, we search for child issues with a process value of A below.
"Parent Link" = {{issue.key}} AND Process = A

After that, I want to check that all statuses are closed using {lookupIssues} in JQL conditions.
Please lend me your wisdom on how to write it.

[Alex Koxaras -Relational-]

Hi @koutarou ishibashi 

You can try using the following rule:

[koutarou ishibashi]

Thank you.
It was possible by setting the following in Create variable.

{{lookupIssues.size}}