Hi everyone. I have a big problem with this extension, it generates a lot of url like this: www.artigianocreativo.com/chiave-di-viol...emart_category_id=16
this url have a canonical on itself and append the variable in get request, so I have a list of duplicate title and description. I've looked in the URL SEF Manager and I found two non-sef url that have the same sef url.
ONE: index.php?option=com_virtuemart&view=productdetails&virtuemart_category_id=16&virtuemart_manufacturer_id=2&virtuemart_product_id=509&Itemid=137 (that I think it's ok)
TWO: index.php?option=com_virtuemart&view=productdetails&virtuemart_manufacturer_id=2&virtuemart_product_id=509&Itemid=166 (that not have virtuemart_category_id in the url)
then it append the category variable as non sef...
How can I manage this situation?
I don't know why the second URL is generated.. please help me!

I have joomla 2.5.16
Virtuemart 2.0.26d
JoomSef 4.5.1
JoomSef VM extension 3.0.18

P.s. I manage canonical from virtuemart feature because the canonical that is managed from JoomSef is not working well..

After a day of research I've found that it generating by a problem on the virtuemart search module.. It seems that is not compatible with JoomSef... I have done a little customization in the module so now the search should be effective in the entire categories of the site.. in the view of the mod_virtuemart_search i've insert the virtuemart_category_id = 0 field: <?php echo JRoute::_('index.php?option=com_virtuemart&view=category&search=true&virtuemart_category_id=0&limitstart=0&Itemid=0' ); ?> (line 7 mod_virtuemart_search/views/defualt.php) but it continue to bring the variable of the category and the result of search is related with the category that I was been before... It is crazy.. I can't understand why.
In fact that url is traduced by joomsef as "list-all-products.html" and there are a lot of non sef url that have this sefurl:
index.php?option=com_virtuemart&view=category
index.php?option=com_virtuemart&limitstart=0&view=category
index.php?option=com_virtuemart&dir=DESC&language=it-IT&view=category
and noone have virtuemart_category_id attribute setted to 0...

Please, this issue begin important for search engines.

and if I manually insert the virtuemart_category_id as non sef variable, then when I change page this variable continue to be showed, like exposed in my first post...

Hello. It is possible with you to share your admin credentials with us (if so, send them to Diese E-Mail-Adresse ist gegen Spambots geschützt! Du musst JavaScript aktivieren, damit Du sie sehen kannst. ) so we can see exact configuration? Also, can you, please, try to formulate again what exactly is the problem? Like step-by-step way and what is undesired behavior in final part? That would make to us easier to reproduce and find the problem. Thanks. We know the behavior of manufacturer and other URL variables in our VM extension needs improvement.

Thank you, in the end I've found the error. Is generated by the mod_virtuemart_search, when I disable this and change with the defualt Joomla search module everything is seems to be ok. Anyway thanks for your attention.