How to get data for Audit Reasons column in OTBI like the Expense Auditor Dashboard ?

Summary:

We are working on a custom dashboard for Expense auditors and one of the fields requested in 'Audit Reasons'. The subject area 'Expense- Expense Transactions Real time' has this field but it is blank.

The only other related column is Audit Reason which currently displays Audit Type. Is there a different subject area with this information or do we need a process run to populate this information?

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