How to customize the delivered ACA eligibility process extract?

Summary:

Our client wants to customize the delivered ACA eligibility process and wants to add or remove a few columns. Ex: SSN, Supervisor, Department, etc. This has a Java class. Can you please guide us on how to customize this?

Content (please ensure you mask any confidential information):

We ran the ACA eligibility process, and the user wants to tweak the output format by adding or removing columns. How can we achieve this? They want SSN, supervisor, department, etc to show up on the file

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