Dear Rod,
Thank you very much for your kindness in going through my post.
I am plannig to sell cheap pesn in private brand. For private brand it is
needed minimum lot of 155,000.
This the reason of minimum qty. so big.
If I get some hint where zencart code that performs some kind of
validation/sanity check that is failing because the data appears to be 'unreasonable' like big values,
it will be really great help.

Thank you for your co-operation in advance.

tsubasa2013