In order for the Re-enable Product Ads Alert to appear and be relevant to your operation, you need to have sufficient committed inventory.
For insight, the total sufficient committed inventory (committed = fulfillable + inbound + reserved) must cover the daily demand calculation during lead times (w/o ads).
Lead Times are based on the Inventory Restock Settings and Daily Demand is also a calculation driven by the Inventory Restock Settings.
To update Restock Settings, please see the Inventory Restock Settings article and the Inventory Restock Setting Overrides
The inverse is that Kapoq will show an alert to disable ads if EITHER (1) there's zero fulfillable OR (2) there's insufficient committed inventory to cover demand during lead time w/o ads.