What are the setups to ensure we can still use Punchout with RSSP in 25C?

Summary:

Responsive Self-Service Procurement and Punchout integration missing.

Content (please ensure you mask any confidential information):

This article states that no setup changes are required for Punchout to work with RSSP, but we find that we cannot access Punchout in RSSP requisitions like the old Self-Service Procurement. Are there any videos regarding RSSP AND Punchout integration? Any help in listing the setups to ensure we can still use Punchout with RSSP in 25C?

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

25C

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