Setup price per product lots...

Hello there!!
Nice work u doing here.. Trying to figure out myself lots of things and thank to this forum almost all of them are being resolved.
My problem is that i want to set-up a price for a lot of 30 products (30 products lots = to 1 price). Lets say i have stock of 900, and everytime a customer add to the shopping cart any lot, the stock by itself reduce by 30 on the total stock of 900..
errr.. i know my english not good, hope u guys understand what i mean..

Resume:
TOTAL STOCK: 900
I want to sell on lots of 30 products.
So lets say, 1 lot of 30 products = 185euros
A customer want 4 lots... so that means 900 - 120 (30x4 lots)= 780 stock left
Total price: 4 lots x 185 euros = 740 euros

I think that is more clear, right? :P
So.. how can i do that with zencart??

Thanks in advance!!

When yo enter a product there are filelds that you set for this for your example:

Product Qty Minimum: = 30
Product Qty Units: = 30

And you should add some instruction in the description about "Must be purchased in lots of 30 units"

Thanks for the answer!

mmm.. that easy?? so what happen if a customer select 35 units?..
what would be perfect is that a customer jst writes how many lots of 30 units he wants.. Is that possible?.. and also i want to setup 1 only price for 1 lot of 30 units.. (185 euros).. if the customer choose 30 or 35 or 60.. the total cost will be 185 x that number.. so that's not what i need in this case.

Thanks again!

You can price by the unit and restrict purchase to a specific lot size as previously outlined. Zen Cart will warn on check if 35 was entered.

You could price in a lot of 30 and provide description that this is in lots of 30 i.e. "Enter the #of lots"