For v11 Cloud instances you will only be able to interact with the TM1 REST API via a non-interactive account (as can be seen in the link Scott provided), this likely explains the access_denied response
Can you confirm you can access the model(s) via Postman/ Rest Client etc..?
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Edward Stuart
Solutions Director
Spitfire Analytics Limited
Manchester
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Original Message:
Sent: Thu May 29, 2025 03:01 AM
From: SUVARNA BOBADE
Subject: Unable to connect to PAW through the Watsonx.ai
I'm working on integrating watson x.ai with IBM Planning Analytics via the TM1 REST API using TM1py. However, I'm unable to authenticate because the system returns:
{
"error": "access_denied",
"error_description": "Failed to verify OAuth information"
}
The user and password details work on the PAW version or the excel plugin without any access errors however I am unable to connect through Watsonx.ai.
I tried creating adirect data connection in watsonx.ai however that also returns the same error. Has anyone been able to establish a connection successfully to watsonx.ai

I have raised a ticket to support teams on PAX side and Watsonx also however i have not received a resolution yet from either.
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Suvarna R Bobade
CIO: -Product Owner
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