The auto-upgrade feature offers a seamless translation service without interruption. If enabled, you’ll be notified when your word limit is reached, and the plan will be automatically upgraded in 2 days. Your entire website will remain translated. However, if you disable it, you’ll receive a notification when the limit is reached, and translations will halt above the limit. Existing translations will remain, but new words won’t be translated, potentially impacting SEO and Google indexing.