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6 Answers
David Crespo Bolivia
09:09, 08/12/2014

In the Sales Management Book there is a reference the our problem:

Secondary Units
OpenERP supports double units of measure. Notice however that the default unit of measure and the purchase unit of measure have to be in the same category. Only the sales unit of measure may be in a different category. This is very useful in the agro-food industry, for example: you sell ham by the piece but invoice by the Kg. A weighing operation is needed before invoicing the customer.

BUT; still we can manage to configure the system to have a variable value in kilograms after the sales order has been issued with a determined fixed quantity as per clients requests.

We find that the system can be configure, for example, with a unit in litres, and simultaneously use, boxes with a fixed quantity of litres. For example, can use in Products 1 litre per dollar and the mode of sale can be in boxes of 12 litres which would be one box per 12 dollars. Here the amounts are fixed.

This we can do, but what we still don´t know how to do is to have in Products 1 chicken and once the sales order is issued in number of chickens requested, we can then add the exact weight accordingly to charge, for example, 2 dollars per kilogram.

Would be the same with apples or other type of agricultural product that is sold by unit but charged buy weight.


Javier Bonetto Bolivia
17:10, 12/12/2014

We have a similar problem. When we create the product, for sales we put units and for secondary unit of sale we put kilograms. 

But, then when we one to create a sales quotation, we cannot modify the quantity in units, it remains one, there is no way we can change it. Only by editing Product and removing the Unit of Sale is then possible to modify the quantity of units and issue a sales quotation in units. 

It seems the secondary unit of sales doesn´t work yet or there is additional configuring somewhere else we don´t know...?

1 Comment
Ricardo Gross Switzerland
16:38, 17/07/2018
william shang United States
15:48, 16/01/2015

this is called "Catch Weight". It is a feature that has to have for a food industry. I have looking for it for a long time. only a few erp software can do it. nothing in odoo. 

1 Comment
Ricardo Gross Switzerland
16:37, 17/07/2018
Boris Stefanov Bulgaria
10:56, 06/06/2019

Did you check tis_catch_weight?

It supports secondary unit of measure and pricing by it.

Seems like a good fit for your scenario.

Even the documentation is about chicken :)

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