Troubleshooting Issues with Deactivation of User Access

OCI (Gen 2) environments can be deactivated so that no user can log in to them. For instructions, see Deactivating Oracle Cloud Services in Oracle Cloud Infrastructure Documentation. This feature can be used when an environment is not in use or when you don’t want anyone to sign into an environment. It can also be used when you need to quickly deactivate access to an environment due to an internal or external security threat that needs to be investigated.

Users attempting to log in to a deactivated environment, will get the following message:
The Message that is displayed if OAuth Client is disabled

If no user is able to sign in, ensure that the environment is activated and is available for user access. For instructions on activating a deactivated environment, see Deactivating Oracle Cloud Services in Oracle Cloud Infrastructure Documentation.