Validate Lodging Rate Against GSA at Spend Authorization Level

Question:
In Oracle Fusion Expenses, is it possible to validate the lodging rate at the Spend Authorization level against the daily GSA per-diem rate based on the travel location?

Specifically:

• Can the system automatically derive the applicable GSA lodging rate (city/state-based) during Spend Authorization creation?
• Is there a standard configuration (policy, per-diem setup, or rule) to prevent submission or flag exceptions when the entered lodging rate exceeds the GSA daily limit?
• If not supported out-of-the-box, what is the recommended approach (e.g., fast formulas, audit rules, custom validations, or integrations) to ensure GSA lodging limits are not exceeded at the authorization stage?