Systems Manager "advanced instances" stuck in pending state

Question

I wanted to try out the "advanced instances" feature in Systems Manager, which is now a toggle on at the account level. That worked just fine, but there is nowhere in the console to toggle it off.  
  
https://docs.aws.amazon.com/systems-manager/latest/userguide/systems-manager-managedinstances-advanced.html  
  
I tried via clia with this command: aws ssm update-service-setting --setting-id arn:aws:ssm:us-east-2:XXXXXXXXXXX:servicesetting/ssm/managed-instance/activation-tier --setting-value standard  
But, now if I get status it's stuck in a pending state for more then 24hours at this point. Here is the output. Does anyone know how to get it back to standard for the account?  
  
{  
    "ServiceSetting": {  
        "SettingId": "/ssm/managed-instance/activation-tier",  
        "SettingValue": "advanced",  
        "LastModifiedDate": 1552956830.414,  
        "LastModifiedUser": "arn:aws:iam::XXXXXXXXXXX:user/redacted@email.com",  
        "ARN": "arn:aws:ssm:us-east-2:XXXXXXXXXXX:servicesetting/ssm/managed-instance/activation-tier",  
        "Status": "PendingUpdate"  
    }  
}  
  
Edited by: kleinberger on Mar 19, 2019 11:56 AM

Answer

Please contact AWS Support if you want to change back to the standard-instances tier.  
  
Thank you  
Varsha

Answer

This ended up needing support to do something on the backend to revert back to "Standard" Systems Manager for the Account. The cli input that I tried was stuck in a pending state for days until the support group made their change. They refunded the incurred charges, but hopefully this helps someone else avoid.

Answer

Thanks, hopefully this request doesn't require a formal support contract.  
  
Case ID 5896814371

Systems Manager "advanced instances" stuck in pending state

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