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.
Modify the source code with AWS Transform for mainframe Developer IDE
If you are using the AWS-managed AWS Transform for mainframe runtime engine, you can use AWS Transform for mainframe Developer to modify the generated source code. You might want to do this if you need to update the modernized code for some reason, or if a portion of the legacy source code couldn't be modernized. You access AWS Transform for mainframe Developer through Amazon WorkSpaces Applications. This section describes how to set up AWS Transform for mainframe Developer on WorkSpaces Applications. It also explains how to use AWS Transform for mainframe Developer to update source code, using the sample application PlanetsDemo.