German phrase
Bitte sagen Sie Bescheid.
Meaning
Please let me know
When to use it
It politely asks for a reply. Use it for email or phone contact.
Example dialogue
Ich schicke Ihnen die Details per E-Mail. Bitte sagen Sie Bescheid.
I'll send you the details by email. Please let me know.
Ich habe alles bekommen und melde mich später.
I received everything and will get back to you later.