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Data Online Migration:permission management

Last Updated:Jan 22, 2026

To access Data Online Migration, a RAM user or a RAM role must have the following permissions.

OpenAPI permissions

Resource Access Management (RAM) includes the following built-in system policies:

Access policy

Description

AliyunOSSImportFullAccess

Permissions to fully manage Data Online Migration.

AliyunOSSImportReadOnlyAccess

Read-only permissions for Data Online Migration.

Role creation permissions

Data Online Migration calls the AssumeRole operation to access your data when you create an OSS data source. This action requires permissions to create roles. If you do not have these permissions, you must create the roles manually.

Required permissions

A custom policy must include the following permissions:

  • ram:CreateRole: Creates a role.

  • ram:CreatePolicy: Creates a policy.

  • ram:AttachPolicyToRole: Attaches a policy to a role.

  • ram:ListRoles: Lists roles.

Sample policy

{
  "Version": "1",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "ram:CreateRole",
        "ram:CreatePolicy",
        "ram:AttachPolicyToRole",
        "ram:ListRoles"
      ],
      "Resource": "*"
    }
  ]
}