What are the necessary tests that need to be completed to enable the geography hierarchy

Summary:

We recently incorporated changes to the geography structure by including 'State' and adding 50 states for the United States in the Geography Hierarchy. The project has been live for multiple years. Considering that the geography structure is a fundamental change, what necessary tests need to be completed? We are using Procurement, AP, AR, Project Costing, General Ledger, and Fixed Asset modules.

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