Cloud Access Management Authorizing Sub-account Read/Write Access to Files with Specified Prefix-Business Use Cases-Help & Documentation-Tencent Cloud

Under the corporate account CompanyExample (with ownerUin as 12345678 and appId as 1250000000), there is a sub-account named Developer. This sub-account requires read/write permissions for objects prefixed with test in the dir1 directory of the Bucket1 storage bucket in the Shanghai region of CompanyExample's COS service.
Solution A:
1. Create a policy through policy syntax.
 {
    "version": "2.0",
    "statement":[
     {
         "effect": "allow",
         "action": "cos:*",
         "resource": "qcs::cos:ap-shanghai:uid/1250000000:Bucket1-1250000000/dir1/test*"
     }
   ]
}
2. Grant this policy to the sub-account. For the authorization method, please see Authorization Management.
Solution B:
Configure Policy and ACL through the COS Console. For details, please see the COS Documentation.