Updating issue custom fields value from another custom field value

[CentricDataProjects]

Hie,

Is it possible to update a custom field using another custom field value? 

Scenario: I have a multi-user picker field called Approvers which is hidden from the portal, when the issue is created this field is supposed to receive values from other custom fields such as Approver1, Approver 2, etc (single user pickers) which are available on the portal.

Your help is much appreciated.

Thank you

[Giane88]

Hi, 

you can create an automation that set the custom fields when the first one is updated.

Create and configure Jira automation rules | Cloud automation Cloud | Atlassian Support

[CentricDataProjects]

I have created automation, but I now have the problem of getting the value from another custom field(e.g from Approver 1) to set it on the Approvers field. It just shows the name of the Users, not the custom fields. 

[Giane88]

I have not clear what you want to copy.

Exist an action to copy fields.

Can you share a screen of two fields and some images on what the result that you expected?