Hi @RiyazAliM 

Thank you for your response, Which means it is only for the roles associated with Unity Catalog and what if I have created a instance profile in Aws which will allow databricks to read data from s3 Or redshift, so when I add this instance profile in storage credentials and when I validate the configuration then it is showing as fail to assume the role. So from Jan 20th will this instance profile will stop working or it is for only associated with UC?. 

Thanks,