kāiyè dàjí, shēngyì xīnglóng, cáiyuán guǎngjìn dōu shì chángjiàn kāiyè zhùfú

开业大吉、生意兴隆、财源广进都是常见开业祝福。

"Wishing you a grand opening," "may your business prosper," and "may wealth pour in" are all common wishes for a grand opening