Update an APNS sandbox channelShow details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/pinpoint/update-apns-sandbox-channel.html
| aws pinpoint update-apns-sandbox-channel --apns-sandbox-channel-request Certificate= |
| Amazon Pinpoint Message Not Delivered In IOS - Stack Overflow : http://stackoverflow.com/questions/43973351/amazon-pinpoint-message-not-delivered-in-ios |