Machine Learning Extractor API Key issue

Hi there,

As many users on this forum I’ve been experiencing an issue trying to access a ML skill from the Studio.
I’m using a pro (60 days trial) version of Document Understanding.
I’m using Studio in 2023.10.0 version and UiPath.DocumnetUnderstanding.ML.Activities 1.17.0

From the Studio, I can access the public endpoints like “https://du.uipath.com/ie/invoices” or “https://invoices.uipath.com/?edition=enterprise” from the studio.

Therefore I assumed the problem comes from my own ML Skill or the API key.

Regarding the Key, I used the AI Unit key since I do not see the Document Understanding under the Robot & Services tab. => Is that the problem ? And if so, how do I get this DU API Key ?

Regarding the ML Skill I made sure it was deployed in a trained version and public. So I’d rather go for the API key being the source of the problem first.

Any hint on the matter anybody ?

Thanks in advance.