nohart:
It looks like this add-on has not been upgraded in some time.Last upgrade: Jul 15 2010 by the venerable Numinix and creinold has of course been working on his updates (which he has generously posted repeatedly throughout the two SBA support threads). I'd say this is a pretty actively updated mod..
nohart:
I really cant understand why this feature isn't built into Zen cart by now. I mean it is pretty essential for any one that runs a store.Just so it's clear what SBA will and will not do (for others following this support thread) default Zen Cart supports disallowing checkout if items in the customer's cart are not in stock. This is a configurable setting and I've never had an issue with it working with SBA..
The ability to simply not add items to the cart when they are not in stock is also functionality supported by the default Zen Cart settings.
However since functionality like SBA (setting stock levels for product variants) is not part of Zen Cart core code, the current Zen Cart feature doesn't support disallowing a customer to add an individual product variant to their cart..
This is supposed to be a core part of the Zen Cart 2.0 release whenever it comes out.