Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
upon their request
Grammar usage guide and real-world examplesUSAGE SUMMARY
'upon their request' is correct and usable in written English.
Typically it is used when referring to someone asking for or making demands of someone else. For example: The company agreed to the customer's terms upon their request.
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
at their behest
as they requested
because they asked
according to their wishes
following their appeal
on their application
upon her application
upon their ethnicity
upon their fitness
upon their location
upon their faith
upon their muse
upon their retirement
upon their size
upon their return
upon their leadership
upon their enthusiasm
upon their isolation
upon their completion
upon their asking
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
25 human-written examples
Nonsmokers are accommodated upon their request.
News & Media
Upon their request, separate trials were granted.
Academia
"Upon their request, they will be placed with or near the Turkish Syriac Christian communities in Mardin," he said.
News & Media
Jones and her lawyers, upon their request, met for three hours in Colorado Springs with top officials from the agency in an effort to clear her name.
News & Media
He said he was "optimistic towards the visit and noted that the three-day stay of the inspectors could be extended upon their request," the news agency said.
News & Media
Upon their request, emeritus faculty members may receive such University publications as the Princeton University Bulletin and the Princeton Alumni Weekly, as well as agendas and minutes of University Faculty Meetings.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
35 human-written examples
Again there were examples of different feeding interactions with each child depending upon their food requests or refusals, with (unhealthy) snacks being more actively limited for children who requested them more (Box 3,C).
Some of the participants felt incapable when they were not able to act upon their relatives' requests or upon their own wishes.
Science
Participants may discontinue trial at their request or upon the occurrence of a serious adverse event.
Science
The identified remains of the victims of Sept. 11 are regularly returned to their families upon request, after officials have made positive identifications.
News & Media
The undergraduate dormitories that permit students to smoke in their rooms upon request are Bexley Hall, Burton Conner, East Campus, MacGregor House, Random Hall, and Senior House.
Expert writing Tips
Best practice
Consider the formality of the context. While generally acceptable, "upon their request" may sound slightly more formal than alternatives like "because they asked."
Common error
A common mistake is losing track of who "their" refers to, especially in lengthy or complex sentences. To avoid confusion, clarify the subject by restating it or using a more specific pronoun.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "upon their request" functions as an adverbial phrase, modifying a verb to indicate the condition or reason for an action. It specifies that something was done because someone asked for it. Ludwig AI validates its correct and usable form.
Frequent in
News & Media
32%
Academia
28%
Science
24%
Less common in
Formal & Business
8%
Wiki
8%
Reference
0%
Ludwig's WRAP-UP
The phrase "upon their request" is a grammatically correct and commonly used phrase that means something was done because someone asked for it. According to Ludwig AI, the phrase is suitable for written English and is often used to refer to someone asking for or making demands. It's prevalent in news, academic, and scientific contexts, indicating a neutral to formal register. While alternatives like "as they requested" or "because they asked" exist, "upon their request" offers a slightly more formal tone. When writing, ensure clarity about who "their" refers to and adjust the phrase's formality to suit the context.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
as they requested
A more direct and straightforward way of saying the same thing.
because they asked
A simple and informal alternative.
at their behest
More formal and emphasizes influence or authority in the request.
according to their wishes
Focuses on fulfilling someone's desires or preferences.
on their asking
A slightly less common but still valid alternative.
following their appeal
Implies a more urgent or persuasive request.
as per their demands
Implies a more forceful or insistent request.
in response to their solicitation
Suggests a formal request or invitation.
on their application
Relates specifically to formal applications or submissions.
at their invitation
Suggests a welcoming or encouraging request.
FAQs
How can I use "upon their request" in a sentence?
You can use "upon their request" to indicate that an action was performed because someone asked for it. For example, "The documents were provided upon their request".
What are some alternatives to saying "upon their request"?
Alternatives include "at their behest", "as they requested", or "because they asked", depending on the context and desired level of formality.
Is "upon their request" formal or informal?
"Upon their request" is generally considered more formal. In less formal settings, phrases like "because they asked" might be more appropriate.
What's the difference between "upon their request" and "on their application"?
"Upon their request" is a general phrase applicable to various situations where someone asks for something. "On their application" is specifically related to formal submissions or applications.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested