Codex instant delivery guide

Instant-stock products are meant to be fulfilled automatically after payment. When inventory is available, the order moves from paid to delivered without waiting on a manual handoff.

The delivered credentials or order-specific details are then visible from the customer account order page.

If available stock reaches zero, checkout is disabled for that product until stock is added again. The public landing page can still remain visible, but the purchase step is blocked rather than pretending delivery can still happen instantly.

This is why product pages show a stock-aware status instead of treating every published product as immediately purchasable.