Every CMS solution comes with a forms plug-in that allows content editors to add web forms into their web pages. Sitecore version is called web forms for marketers. This section covers everything WFFM.
I had a recent support ticket that a few customers complained that they couldn't submit a Web Forms For Marketers (WFFM ) form with an & in it. Originally, the data entered into a WFFM form wasn't encoded and the "<", ">" and "&" charac[...]
Updating the default required field message in Sitecore is very simple. If you have never come across the WFFM 'NotEmpty' item, then you will now. You can find the NotEmpty item in the content editor here:
/sitecore/system/Modules/Web Forms fo[...]