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Purchase Order Approval Workflow for Odoo 19 – Multi-Level RFQ and PO Approval by Amount or Discount

Stop big purchase orders and big discounts from being confirmed without a manager's OK. Levels by amount or discount, approvers in sequence, reasons for rejection, tasks and a full history.

No reviews yet0 salesby TAQNIXUpdated Oct 23, 2026

Description

No big purchase order without a manager's OK

A purchase order for a large amount, or with a large discount, should not become an order without approval.

Purchase Order Approval Workflow adds that approval to Odoo: you define approval levels, the buyer presses Request approval, the approvers are asked one after the other, and the purchase order cannot be confirmed until every level has approved it.

Four approval states

Levels

  • By order total, by the highest line discount, or both
  • Several levels in sequence: orders from 5,000 need the purchase manager, from 20,000 the purchase manager and then the director
  • Any one of the approvers of a level can approve it
Approval levels

The flow

  • A banner tells the buyer what to do and Confirm is refused until approved
  • Each approver gets a task; the To Approve list shows the purchase orders waiting for them, even those of colleagues
  • A rejection needs a reason, which the buyer sees
  • Every step is written in the chatter; the Approval tab shows who decided what
Approval needed banner

Safe

  • If the total or a discount changes after approval, the purchase order must be approved again
  • The buyer and the person who asked cannot approve their own purchase order (a setting allows it)
  • It works together with Odoo's own two-step validation: ours is asked first
  • Cancelling or resetting clears the steps
Two levels in sequence

Tested

29 automated tests: levels by amount, discount and currency, sequential approval, who may approve, rejection, changes after approval, auto-confirm, cancel, record rules, settings.

Approver view

Documented

Illustrated documentation in English and Arabic and an Arabic translation of the module.

What's included

  • taqnix_purchase_approval.zip: the Odoo 19 module (with Arabic translation)
  • Illustrated documentation in English and Arabic (HTML and PDF)
  • Automated tests, licence file (OPL-1) and changelog

Requirements

Odoo 19.0 with Purchase.

What's in the download

The files in the archive you can download after you buy.

  • Full source code
  • Documentation
  • Installation guide
  • Automated tests
  • Licence file
  • Changelog

Customer reviews

Write a review

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Usage

Install and use it in a few lines.

order.with_user(manager).action_tx_approve()

Documentation

Setup, settings and troubleshooting, written by the author.

Open the documentation

Changelog

Every release, newest first.

v1.0.0

1.0.0 – Initial release

  • Approval levels by order total and discount
  • Sequential levels, tasks for approvers, To Approve list
  • Confirm is refused until every level approved; changes after approval ask again
  • Rejection reasons, chatter history and an Approval tab
  • Settings: switch off, confirm when approved, self-approval
  • Arabic translation, automated tests

Frequently asked questions

Does it replace Odoo's built-in two-step validation?

No, they work together. Our approval is asked first when someone presses Confirm Order; Odoo's own validation by amount still applies afterwards if you use it.

Can I have more than one approval level?

Yes. Levels that apply are asked in sequence: for example the purchase manager first, then the director.

Can I trigger approval by discount?

Yes. A level can apply from a total, from a discount on any line, or both.

What if the purchase order changes after approval?

If the total or a discount is different, the purchase order must be approved again before it can be confirmed.

Can a buyer approve their own purchase order?

Not by default. A setting allows it; if a level has nobody else to approve, the request is refused with a clear message.

How do approvers know there is something to approve?

They get a task, and Purchase → Orders → To Approve lists the purchase orders waiting for them, even those of colleagues.

Does it work with Arabic?

Yes. The levels, banners, buttons, notes and settings are translated and the interface works right to left. The documentation is in Arabic too.

Is there an approval for sales quotations?

Yes, as a separate module: Sales Order Approval Workflow.

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