Chinese phrase
变更需提前〜通知 biàn gēng xū tí qián 〜 tōng zhī
Meaning
Changes require ___ days' advance notice
When to use it
A change requires notice a set number of days in advance. It is used in formal business communication to state a required notice period.
Example dialogue
展会改期，变更需提前一日通知。 zhǎn huì gǎi qī biàn gēng xū tí qián yí rì tōng zhī
The exhibition date has changed, so we must give one day's notice.
收到，我通知参会者。 shōu dào wǒ tōng zhī cān huì zhě
Understood. I'll notify the participants.