There are some setting that may relate to this...
allowcartmodellimit.flag
singlepurchase.flag
productqty.limit
By default there is no limit, so there must have been some changes, or possibly other validation added.
Regards
ROb
allowcartmodellimit.flag
singlepurchase.flag
productqty.limit
By default there is no limit, so there must have been some changes, or possibly other validation added.
Regards
ROb