Xero (Update an Invoice - bills) Tracking Category Options

Hi there everybody,

I am in the process of creating an automation that handles all of our bill and credit note data. However, when adding in a step in to check if an invoice already exists so I can update accordingly, I can’t map the dynamic content for Tracking Option - as it does not exist. In the ‘Create an Invoice’ module, these fields do exist - just not in the ‘Update an Invoice’ module. Does anybody have some advice as to what I should do here?

First image is an update module, second is a create module for reference.

Thanks in advance!