D-Wave device access error

Hello, I believe the error is because the execution role used in your example is incorrect, It should be AmazonBraketServiceSageMakerNotebookRole (i.e., the role that is created for you in the create notebook dialog).

Could anybody please help me here!!

Hello SmartNeeraj, the notebooks require a specific IAM role to function: a role with a name that begins with AmazonBraketServiceSageMakerNotebook. The Braket Developer Guide contains details on how to get the role setup: https://docs.aws.amazon.com/braket/latest/developerguide/braket-manage-access.html#notebooks-and-roles

I just gave additional policy to my amazon notebook 'AmazonBraketFullAccess'. Although this is something additional, because the user role already has 'AmazonBraketFullAccess' policy assigned to user's IAM role.

Unfortunately, the notebooks don't inherit permissions from the logged in user. They only have the permissions from the role they are launched with. So, your solution was correct. Roles for notebook execution need to have AmazonBraketFullAccess.