Yes, the Gifting Hub is part of the Discounts section. When a user is terminated or deprovisioned, they lose access to both Discounts and the Gifting Hub, similar to the process for SmartSpending.
Gifting Hub - FAQs - When a Member Is Deprovisioned, Do They Also Lose Access to the Gifting Hub for Making Transactions? Does This Align With How SmartSpending Access Is Handled?
