Cross account DR of EFS may fail with error: Error: EFS DR, backup fs-xxxxxxxx missing matching vault name on target region US West (Oregon) (original vault: Default)

Cross account DR of EFS may fail with error: Error: EFS DR, backup fs-xxxxxxxx missing matching vault name on target region US West (Oregon) (original vault: Default)

Problem:
When doing a DR copy of EFS file systems across regions the following error may occur:



Error: EFS DR, backup fs-ea2d99a2 missing matching vault name on target region US West (N. California) (original vault: Default)

Resolution:
EFS Backup and Restore is performed by AWS Backup Service. When adding an EFS target for the first time in a region, you must create the default backup vault in AWS for each and every region.
Go to the AWS Backup console and choose Backup vaults.    
For more information regarding the AWS Backup Service, refer to https://docs.aws.amazon.com/efs/latest/ug/awsbackup.html

1. Go to the AWS Backup console and choose the correct Region in the upper right-hand corner.

2. Choose Backup vaults
3. Create a Backup Vault

4. Name the vault "default" and then click on "Create Backup Vault"

5. Once that is done then go back into the CPM Console and run the EFS job again and this time the DR copy will succeed. 
This is what is in the backup log: