Describes the cause and action for error messages.
Error Message(English)：
cancel marketplace subscription
AWS Marketplace: Subscription Management and Recurring Billing
https://aws.amazon.com/marketplace/pp/B00ZPY1IOS
AWS Marketplace: Help - Subscribing, Launching, and Managing ...
https://aws.amazon.com/marketplace/help/200799470
AWS Marketplace: Help - Annual Subscriptions
https://aws.amazon.com/marketplace/help/buyer-annual-subscription
有料 AMI - Amazon Elastic Compute Cloud
https://docs.aws.amazon.com/ja_jp/AWSEC2/latest/UserGuide/paid-amis.html
AWS Marketplace インスタンスの起動 - Amazon Elastic Compute Cloud
https://docs.aws.amazon.com/ja_jp/AWSEC2/latest/UserGuide/launch-marketplace-console.html
aws marketplaceで購入したsubscriptionをキャンセルしたい - ぎょりの魚 ...
http://gyori.hatenablog.com/entry/2013/05/19/213151
AWS WAF マネージドルールのサブスクリプション・適用・サブスクリプション ...
https://www.wafcharm.com/blog/aws-waf-managed-rule-subscription-jp/
AWS WAF Managed Ruleにおけるサブスクリプションのキャンセル手順 ...
https://dev.classmethod.jp/cloud/aws/aws-waf-managed-rule-cancel-subscription/
How do I cancel a subscription to an Alert Logic product in AWS ...
https://support.alertlogic.com/hc/en-us/articles/234467068-How-do-I-cancel-a-subscription-to-an-Aler・・・