Issue Summary

In a team managed space if the workflow has approval step where the field selected is Approvers and an automation has been configured to update the Approver field using the steps in - https://support.atlassian.com/jira/kb/how-to-update-the-approver-via-an-approval-field-using-jira-automation-in-team-managed-projects/

The automation fails to save with the following error:

"Additional fields contains invalid field(s) in 'update' or 'fields' section: Approvers"

Steps to Reproduce

1. In a team‑managed service project's workflow add an Approval step and select the approval field with the name “Approvers”.

1. Create an automation rule to update this approval field, following the steps in:
   [How to update the Approver via an Approval field using Jira Automation in team-managed projects | Jira and Jira Service Management | Atlassian Support|https://support.atlassian.com/jira/kb/how-to-update-the-approver-via-an-approval-field-using-jira-automation-in-team-managed-projects/]

1. In the “Edit issue” / “Additional fields” section of the rule, configure the JSON to update the Approvers field.

1. Click Save on the automation rule.

Expected Results

• The automation rule saves successfully with the Additional fields JSON that updates the Approvers field.

Actual Results

The automation rule cannot be saved and the following validation error is displayed:

"Additional fields contains invalid field(s) in 'update' or 'fields' section: Approvers"
 

Workaround

When configuring the workflow, avoid using “Approvers” as the field name. Instead, create and use an approval field with a different name (for example, “approver” or any other custom field name), then reference that field in the automation rule.