# Tagging RDS Custom for SQL Server resources


You can tag RDS Custom resources as with Amazon RDS resources, but with some important differences:
+ Don't create or modify the `AWSRDSCustom` tag that's required for RDS Custom automation. If you do, you might break the automation.
+ The `Name` tag is added to RDS Custom resources with the prefix `do-not-delete-rds-custom`. Any customer-passed value for the key is overwritten.
+ Tags added to RDS Custom DB instances during creation are propagated to all other related RDS Custom resources.
+ Tags aren't propagated when you add them to RDS Custom resources after DB instance creation.

For general information about resource tagging, see [Tagging Amazon RDS resources](USER_Tagging.md).