Goals FYI Notification no change details

Hello Experts,

We need to send an FYI notification to the employee's Line Manager whenever a Goal is updated. We've set Approve Performance Goal approval rule to automatically approve Performance Goals upon submission, which triggers the FYI notification to the Manager. However, the notification lacks specific details such as the current and proposed changes. Could you advise on how to include these details in the notification? Per checking, it is already included in the template.

Thanks in advance.