Allow access to all resources within an AWS account for principals from multiple organizations

aws-scp-restrict-orgs.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowAccessToMultipleOrgs",
            "Effect": "Allow",
            "Action": "*",
            "Resource": "*",
            "Condition": {
                "StringLike": {
                    "aws:PrincipalOrgPaths": [
                        "o-1234567890/*",
                        "o-0987654321/*"
                    ]
                }
            }
        }
    ]
}