VAT ID Check during registration and shopper group assignment

[mystgr]

Hi there,

what i really want to do is during the registration to check the VAT of a user through VIES (i have written a php function for that) and then depending on the VAT to assign the user to a specific shopper group. My problem is that i really really cannot find in which php file of virtuemart i can check the userfields after the registration..

any ideas about it?

Thanks in advance!

[Milbo]

There is a reason it has this price http://extensions.virtuemart.net/vm-orders/eu-vat-id-checker-detail