Availability zones are not guaranteed to have the same name across accounts (ie. us-east-2a in one account might be us-east-2d in another). You would need to us

Availability zones are not guaranteed to have the same name across accounts (ie. us-east-2a in one account might be us-east-2d in another). You would need to use the AZ-ID to determine if they are the same. https://docs.aws.amazon.com/prescriptive-guidance/latest/patterns/use-consistent-availability-zones-in-vpcs-across-different-aws-accounts.html https://docs.aws.amazon.com/prescriptive-guidance/latest/pat...