# How serving behaves

> Fail-closed guarantees, the 24-hour freshness window, and automatic stock repair for live kits.

Serving is fail-closed end to end: if a surface isn't published, a term isn't live, or
anything errors, shoppers get your native experience — never a degraded or fabricated
one.

## Freshness

Served kits come from a fast serving layer, and every product in a live kit is
re-verified against your live store within 24 hours; a kit is never served past that
freshness window.

## Stock repair

When a product goes out of stock, the kit is automatically repaired — fitting replacement
products are selected from your catalog while the kit's copy stays untouched and is
safety-re-checked — or pulled from serving if no fit exists, with the change surfaced in
your Review queue.

## Dashboard actions

Dashboard actions (go live, pause, approve) take effect immediately.