AWS Mainframe Modernization Service (Managed Runtime Environment experience) is no longer open to new customers. For capabilities similar to AWS Mainframe Modernization Service (Managed Runtime Environment experience) explore AWS Mainframe Modernization Service (Self-Managed Experience). Existing customers can continue to use the service as normal. For more information, see AWS Mainframe Modernization availability change.
Configure the AWS Transform for mainframe managed application
You can configure your application to include access to legacy utilities. You can customize additional properties as well. In order to understand what you can configure and where, refer the Structure of AWS Transform for mainframe managed applications section to understand the overall structure of an AWS Transform for mainframe modernized application.