German phrase
Ich melde mich bis ~.
Meaning
I'll get back to you by ___
When to use it
It sets a clear deadline. It states when you will get back to someone, often during planning.
Example dialogue
Bis wann brauchst du die Information?
By when do you need the information?
Ich melde mich bis spätestens Freitag.
I'll get back to you by Friday at the latest.