How to add custom archival data to the GTN report?

Summary:

A customer needs to add custom deductions to the Gross to Net summary report, just as they can in the Payslip, which include this feature.

The XML does not contain any tags that refer to the new deductions.

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Version (include the version you are using, if applicable):

25D

Code Snippet (add any code snippets that support your topic, if applicable):