Because Adobe IMS requires https for authentication, if you are using n8n locally, you will need to use a self signed certificate to catch the redirect uri when authenticating.
For Make.com I just tested this myself and was able to authenticate successfully. You will want to choose the HTTP node with “Make and OAuth 2.0 request” and fill in your client secret and client id from the developer console with the appropriate scopes as outlined in the project details.
Then you can make your requests, as outlined in the API references:
which should give you a 200 successful response.
once you get here you can start to chain the responses together. I recommend you check out the postman collection to get started with API calls if you are running into issues.
If you are using claude you might be able to ask it to spit out some JSON based on the API references, but FYI the V4 docs are not optimized for LLMs at this time so you will have to make sure things are set up correctly and functional.