Specific field have a customised error message?

Hi,

Is there a way to add a message to a specific field instead of the generic error message?

In this case, I want to limit a number response to 50 (easy enough to set up) but would like to tell people that “you can order more later or by talking to us directly” if they select 60 for example.

Currently, if I choose 60, I would get an error message of “This value should be between 0 and 50.”

Thanks ??