French phrase
Veuillez confirmer votre présence avant ~.
Meaning
Please confirm your attendance by ___.
When to use it
A polite request to report attendance by a deadline. Used for scheduling or reservations, with a formal, businesslike tone.
Example dialogue
Nous devons connaître le nombre final.
We need to know the final headcount.
Veuillez confirmer votre présence avant 15 h demain.
Please confirm your attendance by 3 p.m. tomorrow.