French phrase
Faites-moi savoir ~.
Meaning
Please let me know ___.
When to use it
A polite request for a decision or response. Often used in business correspondence.
Example dialogue
Faites-moi savoir votre décision au plus vite.
Please let me know your decision as soon as possible.
D'accord, je vous donnerai une réponse la semaine prochaine.
All right, I'll give you an answer next week.