I am a Uni Professor who uses lseg-data via Python. There is an "API Playground" that I believe I should be able to access, but I don't seem to be able to reach it, even after having logged into the LSEG Developer Portal.
This is a link to the playground:
https://apidocs.refinitiv.com/Apps/ApiDocs
Here comes the screenshot, where you can see that I am logged into the LSEG Developer Portal. And that I get an "Authentication failed: error getting token" message when I try to access the API Playground.