Update Email Subject Line Notifications for External Supplier Registration

Summary:

Is there a way to change or customize the email subject line notifications when an email is sent to the external supplier who's registering in fusion?

Sample:

A supplier is registering on the external supplier registration link and the approver has rejected the request an email is sent to the supplier. The default subject line is "Supplier Registration Request #### Was Rejected"

I have got one docs and tried using User Interface text

From Search String:
Supplier Registration Request {REQUEST_NUMBER} Was Approved
Replace String:
Supplier Registration Request {REQUEST_NUMBER} - {COMPANY_NAME} Was Approved

But Getting Below Error:

The current and replacement text must have identical message tokens. Only reordering of tokens is allowed, you cannot add or remove tokens (or change their names) in your replacement.