**To update a group** This example updates the description and precedence for MyGroup. Command:: aws cognito-idp update-group --user-pool-id us-west-2_aaaaaaaaa --group-name MyGroup --description "New description" --precedence 2 Output:: { "Group": { "GroupName": "MyGroup", "UserPoolId": "us-west-2_aaaaaaaaa", "Description": "New description", "RoleArn": "arn:aws:iam::111111111111:role/MyRole", "Precedence": 2, "LastModifiedDate": 1548800862.812, "CreationDate": 1548097827.125 } }