- Extensions targeting purchase.checkout.reductions.render-before and render-after now render at the top of the order summary on one‑page mobile checkouts.
- The change applies to all API versions, moving these extensions from the bottom to the header area of the summary.
- Developers may need to adjust UI expectations or styling due to the new placement.
Checkout UI extensions - Extensions in the reductions render before/after targets will now render in the header order summary on 1 page mobile checkouts
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