For example I have a CMS setup on xyz.com
.xyz Domain Names | Join Generation XYZ has a form which a potential client asks about a product and or a service.
If I receive the question via e-mail, I need to enter the data manually.
Is there any way to create leads externally? or any way to carry the data ERPNext automatically.
Shame myself but the link is not working 
It is here.
Ok it was easy!
Setup sales main and instead of opportunity create leads!