When LinkSell suspends a merchant, the paid API gateway, the merchant charge
API, the site-middleware charge, and hosted checkout sessions now refuse with
503 merchant_unavailable, the same answer the payment-link and invoice pages
already gave. New checkout sessions cannot be minted for a suspended merchant,
and the merchant's REST API key is refused (403, reason
merchant_unavailable) until the suspension is lifted. Lifting it restores
every surface.
This note records shipped behavior as of . Planned work remains on the public roadmap until release.