Which one is correct? “please let me know if you have any question” or ”please let me know if you have any questions”

When using the phrase "please let me know if you have any question" or "please let me know if you have any questions," the correct choice depends on the context and the meaning you intend to convey.

Plural Form: "any questions"

This is the more common and generally accepted form. It implies that you are open to addressing multiple questions or inquiries.

• Example: "Please let me know if you have any questions."234

Singular Form: "any question"

This form is used when you are asking about a single, specific question or inquiry. It emphasizes the possibility of any type of question.

• Example: "Is there any question you would like to ask?" or "Please let me know if you have any question regarding our new service agreement."235

Summary

• Use "any questions" when you are open to multiple questions.
• Use "any question" when you are referring to a single, specific question or emphasizing any type of question.

In most business and general contexts, "please let me know if you have any questions" is the preferred and more commonly used expression.