Not sure if there is a way for this to work for us but I'd like to see..
We do not use stock.. all our parts sold show a - stock amount..
when we take a part out of stock we remove the price and select a custom image that says out of stock..
Wondering if there is a way for when I remove the price, which removes the ad to cart.... I can get the notify button to show.. this way when I re add the price It will notify them..
VirtueMart 3.8.8
Check the settings in Virtuemarts config->configuration->shop front end
Jörgen