Both are correct ,but the uses of these are different and Sense also different. “Let me know” doesn’t usually mean the same thing as “Tell me.” “Let me know” usually refers to a piece of information about the future.

Is it rude to say let me know?

Just let us know.

I agree that it’s not a bad thing to say, but its suitability depends on the context. Confirming that you are ready to fulfill an offer is one thing. Making a request of one’s boss is something else entirely. It fits your context, but I think it’s a bit too blunt for the context of the OP.

What is another word for let me know?

Synonyms for let me know include keep me apprised, keep me informed, keep me posted, keep me updated, notify me, told me, informed me, advised me, apprised me and briefed me.

What can I say instead of let me know?

What to say instead of Let Me Know if you need anything?!
Keep me posted.Keep me updated.Keep me in the loop.Tell me if you find anything.Keep me informed.Fill me in when you get a chance.Let me know your thoughts.Get back to me when you can.

How do you use please let me know in a sentence?

Please let me know what I’m missing. Please let me know about the button. Stories to tell, please let me know. While you’re at it, please let me know its name.

Can I say thanks for letting me know?

Thanks for let me know

This is not correct. Don’t use this phrase. In this phrase, you need the gerund of the verb “let.”

Do let me know vs please let me know?

If you say Do let me know, you are making your request more emphatic and suggesting that you really mean what you are saying. It can mean don’t hesitate to tell me. Please let me know can sound more routine and automatic. Please do let me know sounds like “overkill” and I would be surprised to hear it.

Can you please let me know meaning?

Definition of ‘to let someone know’

If you let someone know something, you tell them about it or make sure that they know about it. They want to let them know that they are safe. If you do want to go, please let me know.

Can you please let me know or please let me know?

The words are acceptable but the punctuation is not. Your two options for correct comma placement would be: “Could you, please, let us know when …”

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