Use Limits

Last Updated At: 2025-10-21 09:10:00

Item Limit Value
Number of user groups in a root account 300
Number of sub-accounts in a root account 2000
Number of user groups that a sub-account can join 300
Number of sub-accounts in a user group 300
Number of custom policies that can be created by a root account 1000
Maximum number of characters in a policy syntax 4096

Note:

  1. The number of custom policies that can be created by a root account includes COS custom policies. If you encounter a Exceed the Maximum Number of Custom Policies (Limit is 1500) prompt and the CAM custom policy number has not reached the limit, you can go to the COS bucket list - console, click on the bucket name to enter the permission management to check if the ACL (Access Control List) number exceeds the limit.
  2. The number of policies directly associated with a user or user group includes COS custom policies. If you encounter a Policy Association Failure prompt and the number of associated policies within CAM has not reached the limit, you can go to the COS bucket list - console, click on the bucket name to enter the permission management to check if the ACL (Access Control List) number exceeds the limit.