Approved documents cannot be modified. However, you can use the Custom Approval Label feature to attach necessary files after receiving approval.
You need [Approval Policy Management] permission to configure this setting.
Creating Custom Approval Labels
Go to [Settings] → [Custom Approval Labels] → [Add Label] to create labels like 'Confirmed' or 'Issuance Completed'.
For detailed instructions about custom labels, refer to the Custom Approval Label Guide.
Setting Up Approval Lines
Set up approval lines for the required documents as shown in the example below.