Automation add value into field from connected issues under Epic

[Urmo]

Hi

Is it possible somehow that i have EPIC issue type and there is customfield name Year. Every year under EPIC is created Risk Task and there is also Year customfield. When user change ticket status to CLOSED then in Risk Task Year customfield get value 2022 (year 2022). When another user change status to CLOSED in new Risk Task ticket year 2023 it will get value on customfield Year 2023.

Now automation lookup that all tickets under EPIC have customfield Year. When under EPIC customfield Year allready have 2022, then it does not do anyting but when Risk Task have new value, then it writes next to 2022 value 2023 and so on.

Is it possible to do with automation in Jira?

Idea is that when every year users making Risk Task issue and add year number into customfield, it will get also on Epic issue customfield Year.

[Ponnappan Ganapathiya]

Idea that I have is create a variable and append it. If I am not wrong all variable acts as String so you can simply append them as {{issue.customfield_123}}+{{Var}} 

On next run it will keep the existing value and append the new value logged in the variable.

Hope it helps!