Why Can't I Cancel the Authorization After the IAM User Delegates the Read and Write Permissions on OBS Buckets?

The permissions of the IAM user are not clear. As a result, the IAM user may fail to delegate the read and write permissions on OBS buckets to an MPC user.

If the permissions can be delegated but the authorization cannot be canceled, perform the following operations:

• Cancel the authorization using the Huawei Cloud account.
• Add the Security Administrator permission to the IAM user and then cancel the authorization.