IAM has certain limitations for entities and objects. Let us look at the most important limitations across the most common entities and objects:
- Names of all IAM identities and IAM resources can be alphanumeric. They can include common characters such as plus (+), equal (=), comma (,), period (.), at (@), underscore (_), and hyphen (-).
- Names of IAM identities (users, roles, and groups) must be unique within the AWS account. So you can't have two groups named DEVELOPERS and developers in your AWS account.
- AWS account ID aliases must be unique across AWS products in your account. It cannot be a 12 digit number.
- You can create 100 groups in an AWS account.
- You can create 5000 users in an AWS account. AWS recommends the use of temporary security credentials for adding a large number of users in an AWS account.
- You can create 500 roles in an AWS account.
- An IAM...
