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How to delete a product used in an invoice or sale order?

Pascal Tremblay
on 9/15/15, 10:42 AM 2,022 views

Hello guys,

In odoo 8, is it possible to completely delete a product if it is used in an invoice or an order?

I know I can uncheck the Active checkbox, but that doesn't erase the product from database... 

But I understand that it create an integrity error if I completely erase the product. 

Would you have other solutions?

I get this error...

Integrity Error

The operation cannot be completed, probably due to the following:

- deletion: you may be trying to delete a record while other records still reference it

- creation/update: a mandatory field is not correctly set

[object with reference: Invoice Line - account.invoice.line]


Emipro Technologies Pvt. Ltd.

--Emipro Technologies Pvt. Ltd.--
| 6 7 8
Rajkot, India
--Emipro Technologies Pvt. Ltd.--

Being an emerging leader in IT market since 2011, Emipro Technologies Pvt. Ltd. has been providing a wide range of business solutions in Odoo & Magento. We are pleased to have a large pool of contented customers with our meticulous work in the domain of ERP & e-Commerce. A ray of relief & satisfaction to  our customers heart by our successful deployment in their organization, purely represents our success in Odoo platform. Hence, we take pride for being an Odoo partner with a vision of expanding our strategic alliances with our customers to offer them high value-added, trustworthy & cost effective solutions.


Since establishment, our business has span across 11 countries of the world. Our customers are companies of all sizes ranging from start-ups to large enterprises, who realize that they need a professional business solutions to generate revenue streams, establish proper communication channels or streamline business operations. Standing with strong determination of customer satisfaction, observing each minute detail of their business processes, providing proper guidance and moving forth to develop product accordingly adds our value and reliability among our customers. 


We are blessed with efficient, passionate & eclectic young developers who have come across almost all kinds of business profiles, working with full dedication, applying creativity & new features in existing modules and completing customer's projects successfully on predefined target. Our in-depth knowledge while giving business solutions in Odoo allows us to offer following services to our customers :


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We will be :) to welcome you @ www.emiprotechnologies.com to solve any kind of your business needs around Odoo. However we are just an inch away from you by email info@emiprotechnologies.com or a tweet to @EmiproTech

Emipro Technologies Pvt. Ltd.
On 9/15/15, 10:55 AM


If a product used in Invoice, Sale Order, Purchase Order or Picking and if any of them are confirmed, you can't delete that product. It is not possible at all either theoretically, conceptually or practically. 

Reason :

Theroritical - ERP is itself mean to be a system for integrated departments where Sale, Warehouse, Accounting departments connected with each other. So once anything confirmed in Odoo, it will have effect at numerous places. So it is not good to delete.  Because already it's effect has been spread over so many places once record is confirmed.

Technical - In PostgreSQL database, there is primary key and foreign key. So when you try to delete product, its ID already exist at account_invoice_line table so database itself won't allow you to do so.

One way is possible in which you can delete product from related screens first by back end side of PostgreSQL query. Then you can delete product. However at confirmed invoices values will be changed as well as so many report values will be changed too. But ultimately you have to delete product from invoice, sales, picking etc.. This is purely not good way. No one would suggest you to do it.

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Asked: 9/15/15, 10:42 AM
Seen: 2022 times
Last updated: 9/15/15, 11:05 AM