New Post: Best way to override default validator messages?

Hi

You can override FluentValidation's default error messages by replacing the default resource provider. See the section on "using a custom resource provider type" at the bottom of this page: https://fluentvalidation.codeplex.com/wikipage?title=Localization&referringTitle=Documentation

Essentially, you need to create a resource file to include your new error messages and then tell FluentValidation to use this file by setting ValidatorOptions.ResourceProviderType to your resource provider type.

Jeremy