Hi Jim, yes we have a solution for the problem, I personally tried these 2 plugins developed by a  Ahex Technologies and they are working perfectly., Sharing the links
https://apps.odoo.com/apps/modules/17.0/max-order-quantity-odoo

Hi Jim, 
Do you have solution? I have same question as you. 

Hi Suraj

I don't think you understood my question. I want to set minimum order levels on the eCommerce module, so web customers have to buy a minimum amount of a product. I can't adjust the quantities manually after the sale.

Regards

Jim

Currently it is not available to set maximum or minimum limits. But you can manage the number of product that you have to sent to the customer manually from inventory management.

To do so you have to go to Inventory app --> Your company's orders --> warehouse stock --> in that you have to edit the "DONE" field to deliver the partial order.

 do so you have to go to

Inventory app --> Your company's orders --> warehouse stock --> in that you have to edit the "DONE" field to deliver the partial order.