How to display a message to all suppliers on the Supplier Portal page or home page

Summary:

Is there a way to send a message to all suppliers, such as displaying a pop-up on the home page or supplier portal page?

Content (please ensure you mask any confidential information):

My client would like to know if there is a way to display a message of choice when necessary, to all suppliers.

For example, is there a customization that can display a pop-up or message bar on either the home page or supplier portal page?

Home Page

Supplier Portal

Version (include the version you are using, if applicable):

24D (11.13.24.10.0)

Code Snippet (add any code snippets that support your topic, if applicable):