AWS Backupvault SNS notification - aws-cloudformation

Question

I have created a backup plan and configured SNS using cloud formation ( not CLI ), but backup job has running and completed successfully but not receiving emails notification ( already subscribe to the SNS topic ).
Backup vault section in cloudformation :
BackupVaultWithDailyBackupssns:
Type: "AWS::Backup::BackupVault"
Properties:
BackupVaultName: "Vault_name"
Notifications:
BackupVaultEvents:
- BACKUP_JOB_STARTED
- BACKUP_JOB_COMPLETED
- BACKUP_JOB_SUCCESSFUL
- BACKUP_JOB_FAILED
SNSTopicArn:
!Sub 'arn:aws:sns:${AWS::Region}:${AWS::AccountId}:My_topic'
SNS Policy :
{
"Version": "2008-10-17",
"Id": "__default_policy_ID",
"Statement": [
{
"Sid": "__default_statement_ID",
"Effect": "Allow",
"Principal": {
"AWS": "*"
},
"Action": [
"SNS:GetTopicAttributes",
"SNS:SetTopicAttributes",
"SNS:AddPermission",
"SNS:RemovePermission",
"SNS:DeleteTopic",
"SNS:Subscribe",
"SNS:ListSubscriptionsByTopic",
"SNS:Publish",
"SNS:Receive"
],
"Resource": "arn:aws:sns:us-east-1:111111111111:My_topic",
"Condition": {
"StringEquals": {
"AWS:SourceOwner": "111111111"
}
}
},
{
"Sid": "My-statement-id",
"Effect": "Allow",
"Principal": {
"Service": "backup.amazonaws.com"
},
"Action": "SNS:Publish",
"Resource": "arn:aws:sns:us-east-1:111111111111:My_topic"
}
]
}

Answer 1

For anyone looking for an answer on this here I how I set mine up, this is working for all failed notifications.
Set up your vault referencing a topic
BackupVault:
Type: "AWS::Backup::BackupVault"
Properties:
BackupVaultName: Backup Vault Name
Notifications:
BackupVaultEvents:
- "BACKUP_JOB_EXPIRED"
- "BACKUP_JOB_FAILED"
SNSTopicArn: !Ref FailedBackupTopic
DependsOn:
- FailedBackupTopic
Set up a topic, topic policy and topic subscription
FailedBackupTopic:
Type: AWS::SNS::Topic
Properties:
DisplayName: "AWS Backup - Failed backup notification"
FailedBackupTopicPolicy:
Type: 'AWS::SNS::TopicPolicy'
Properties:
PolicyDocument:
Id: SNSPolicyV1
Version: '2012-10-17'
Statement:
- Sid: Sid1
Effect: Allow
Principal:
Service:
- 'backup.amazonaws.com'
Action: 'sns:Publish'
Resource: !Ref FailedBackupTopic
Topics:
- !Ref FailedBackupTopic
FailedBackupTopicSubscription:
Type: 'AWS::SNS::Subscription'
Properties:
Endpoint: "email#email.com"
Protocol: email
TopicArn: !Ref FailedBackupTopic