Amend Confirmed Purchase Orders without the Chaos
Reopen a committed purchase order for governed editing — capture a reason, preview the cost and delivery impact, route high-value changes for approval, and let receipts rebuild themselves. Every change is logged and every stakeholder is notified.
The problem
Standard Odoo locks a purchase order the moment it is confirmed. When a vendor raises prices, a quantity changes, or delivery terms shift, buyers are forced to cancel and recreate the order or edit the database directly — breaking the audit trail and orphaning the linked receipts. Once goods have started moving, there is no supported path to amend the order at all.
The solution
Purchase Order Amendment gives buyers a supported, governed way to revise a confirmed order. A single Amend button reopens the PO for controlled editing, requires a justification, previews the cost and delivery impact, routes high-value or post-receipt changes for approval, and rebuilds receipts automatically — with a verification log of exactly what was cancelled and created.
Everything a governed amendment needs
Every capability below is implemented in the module.
Amend Confirmed Orders
A dedicated Amend button appears only on confirmed purchase orders, reopening them for controlled editing of products, quantities, prices, and delivery terms instead of a cancel-and-recreate workaround.
Mandatory Amendment Reason
Every amendment requires a written justification before it can be confirmed, turning the change history into a genuine, defensible audit trail rather than a bare list of edits.
Impact Preview Before You Commit
See the cost delta and any delivery-date shift the amendment causes before it is finalized, so buyers understand the financial and scheduling consequences up front.
Side-by-Side Line Comparison
Original and amended quantities, prices, and subtotals sit side by side with clear added, modified, and removed badges, so buyers see exactly what changed at a glance.
Automatic Receipt Regeneration
Open receipts tied to the original order are cancelled and fresh ones are created to match the amended lines, so the warehouse always works from accurate expectations.
Receipt Verification Log
Every cancelled and created receipt is recorded on the amendment with its state and scheduled date, replacing silent background automation with a verifiable log.
Configurable Approval Routing
Set a cost-delta threshold and a policy for amendments after partial or full receipt, so high-value or sensitive changes require sign-off before they take effect.
Inline Amendment Timeline
Every past amendment is listed directly on the purchase order form, with its status, cost delta, and delivery shift — no separate wizard to hunt through.
Bulk Amend Multiple Orders
Apply a shared change, such as a new delivery date, across several selected confirmed orders at once from a single wizard instead of amending each order individually.
How it works
Click Amend
Open a confirmed purchase order and click Amend. The order enters an editing mode with a clear banner showing it is being amended.
Edit and Justify
Revise quantities, prices, or delivery dates on the reopened lines and record the reason for the change.
Review Impact
Confirm the amendment to see the cost delta and delivery shift; high-value or post-receipt changes route automatically to an approver.
Apply and Notify
Once approved, receipts are rebuilt, the vendor is notified, and the change lands on the inline amendment timeline.
Frequently asked
No sales fog. If your question isn't here, email us and we'll answer it the same way.
Open receipts linked to the original order are cancelled automatically when the amendment is applied, and new receipts are created to match the amended lines. The amendment's Receipts tab logs exactly which pickings were cancelled and created, so nothing is left to guesswork.
Buy it on the Odoo App Store
Purchase, download and install directly from the official Odoo Apps Store — you'll always get the latest supported build.
Purchase Order Amendment
Amend a confirmed purchase order — price, quantity or terms, even once goods are moving — behind a mandatory reason, an impact preview and a side-by-side line diff, with linked receipts regenerated and verified automatically.
Buy on Odoo App Store