Both 'as per your request' and 'per your request' are grammatically correct and widely used in written English. What is this? 'As per your request' might seem pretty old-fashioned to some. Using something like 'as you requested' is a more modern way of saying 'as per your request' and might sound less 'cumbersome'.

Is per your request correct?

“As per your request” sounds formal and grammatically incorrect, even though it was used in business for many years. Its time has come and gone. Instead, switch it with “As you requested,” which says the same thing in a much more approachable and simple way.

What does at their request mean?

On being asked to do something, as in At my request they'll move us to another room, or I'm speaking at his request.