French phrase
Il est convenu que ~.
Meaning
It has been agreed that ___.
When to use it
It states that an agreement has been reached. This formal phrasing is often used to record decisions in writing.
Example dialogue
Il est convenu que la réunion commencera à 9h.
It has been agreed that the meeting will start at 9:00.
Parfait, je le note.
Perfect, I'll make a note of it.