let me know once

USAGE SUMMARY

"let me know once" is correct and usable in written English.
You can use it to politely ask someone to inform you once something has happened. For example, "Please let me know once you receive the report."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

3 human-written examples

I'm sure someone will let me know once it's been definitively sorted out.

The Guardian - Opinion

Please let me know once your binary has been uploaded and I will ensure an expedited review.

TechCrunch

Let me know once you do; I'll be happy to debunk it.

Huffington Post

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

"It lets me know, once again, that good will ultimately prevail in this world".

Huffington Post

And let me know what distills down, once you do.

Huffington Post

So, let me know what you think once and for all and then we can drop this subject for fear of being ruled by The Vatican... those righteous hypocrites.

Huffington Post

I don't need a special day to make myself look like a mass murderer it's enough just to hear that door unlock in the morning, and the roar of the building that accompanies it, to let me know it's time once again to become something I'm not.

Vice

Cramping, bloating, a craving for salt and excessive fatigue let me know a week in advance that, once again, I've failed to become a mother.

Huffington Post

Let me know.

The New York Times

Let me know tomorrow.

The New Yorker

Let me know what?

The New York Times

Expert writing Tips

Best practice

Consider the context: in formal settings, more professional alternatives like "please advise me when" might be preferable.

Common error

Ensure the event you're referring to is clear. Instead of "Let me know once," specify the event: "Let me know once the report is finalized" to avoid any confusion.

Linguistic Context

The phrase "let me know once" functions as an imperative requesting someone to provide information after a certain event has taken place. As Ludwig AI suggests, it's a polite way to ask for an update.

Expression frequency: Rare

Frequent in

News & Media

100%

Less common in

Science

0%

Formal & Business

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "let me know once" is a grammatically sound and polite request for information contingent on a specific event. Ludwig AI confirms its correctness. While generally versatile, its neutral register suggests considering more formal alternatives in certain professional contexts. It’s important to clearly define the triggering event to avoid ambiguity. Semantically related options include phrases like "inform me when" or "update me when", which offer slight variations in tone and emphasis to suit different situations.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

tell me when

A very direct and simple request for notification, similar in tone.

keep me informed once

Similar, but emphasizes the state of being informed.

inform me when

Focuses more directly on the act of informing, slightly more formal.

update me when

Implies a more ongoing situation requiring periodic updates.

please advise me when

More polite and formal, suitable for professional settings.

notify me upon

More formal and emphasizes official communication.

get back to me when

Implies a need for a response and return communication.

keep me posted on

Suggests regular updates on progress, slightly more informal.

let me know when you can

Adds a conditional element, suggesting flexibility.

give me a heads up when

More informal and implies a warning or preparation.

FAQs

What is the best way to use "let me know once" in a sentence?

The phrase "let me know once" is typically followed by a clause specifying the condition or event that triggers the notification. For instance, "Let me know once you have finished the report" is a clear and effective way to use it.

Are there formal alternatives to "let me know once"?

Yes, in professional or formal contexts, you can use alternatives like "please advise me when" or "kindly inform me when" to maintain a more polished tone.

How does "let me know once" differ from "let me know if"?

"Let me know once" implies a specific point in time after an event has occurred, while "let me know if" seeks confirmation of a condition or possibility. For example, "Let me know once you receive the package" versus "Let me know if you need help."

Can I use "let me know once" in all situations?

While generally acceptable, "let me know once" may be too informal for very formal or high-stakes communications. In those cases, consider using phrases such as "please notify me upon" or "inform me immediately when" for added professionalism.