Lack of interest List the name of required fields which are missing values, rather than "Please enter a value for all required fields."

[Joe Link]

Right now, required custom fields which are missing values trigger this box with a generic message (sometimes in duplicate). It'd be great for members if these messages included which fields are missing values (maybe pull from the thread field title?).

 

[HWS]

If you are still at XF 1.5, there is an add-on for it:
[WMTech] Custom User Field Error Enhancer

Should be updated for XF 2...