Sure. Follow the next steps: 1. Open \Presentation\Nop.Web\Validators\Customer\RegisterValidator.cs file 2. Add the following line of code to constructor of RegisterValidator class
RuleFor(x => x.VatNumber).NotEmpty().WithMessage("VAT number is required");
3. Recompile the solution P.S. Source code is required in order to apply the changes
I have the same problem, I need to have the vat nr required on registration but I have version 1.90 installed How can i change the registration form to make it required?