| Availability |
Odoo Online
Odoo.sh
On Premise
|
| Odoo Apps Dependencies |
•
Invoicing (account)
• Purchase (purchase) • Discuss (mail) |
| Lines of code | 250 |
| Technical Name |
acompte_purchase_order |
| License | OPL-1 |
Purchase Order
Down Payment
Easily manage supplier down payments directly from your Odoo purchase orders. Generate advance invoices as a percentage or fixed amount, and automatically deduct them from the final bill.
📋 Overview
This module enhances Odoo Purchase Orders by introducing a smart invoice wizard that allows you to choose between a standard vendor bill or a down payment invoice.
When suppliers require an advance payment before delivery, you can generate a proportional down payment invoice based on each PO line, track paid amounts, and create the final bill with automatic deduction of previously paid advances.
All tracking — including amounts, linked invoices, and percentages — is fully integrated into the purchase order form.
⚡ Features
Smart Invoicing Wizard
A contextual popup replaces the default "Create Bill" button, offering standard billing, percentage-based, or fixed down payment options.
Percentage Down Payment
Enter a percentage and the system automatically calculates the advance amount across all purchase order lines.
Fixed Amount Down Payment
Define a fixed advance amount and let the system intelligently distribute it across the order lines.
Automatic Deduction
Previously paid down payments are automatically deducted in the final bill as negative lines, proportionally allocated.
Centralized Tracking
View down payment amounts, linked invoices, and percentages directly from the purchase order.
Native Integration
Fully compatible with Odoo's Purchase and Accounting modules — no external dependencies.
🔄 How It Works
Confirm your Purchase Order
Create and confirm your purchase order as usual in Odoo.
Click "Create Bill"
The module overrides the default action and opens a wizard with invoicing options.
Select Down Payment Type
Choose percentage or fixed amount, enter the value, and generate the invoice instantly.
Final Bill with Deduction
The final vendor bill automatically deducts all previous down payments.
🛠 Technical Details
| Odoo Version | 18.0 |
| Module Version | 1.0 |
| Category | Purchases |
| Dependencies | purchase, account |
| License | LGPL-3 |
| New Model | purchase.advance.payment.inv (TransientModel) |
| Added Fields (PO) | downpayment_amount, downpayment_invoice_id, downpayment_percent |
| Installation | Copy to addons/, update apps list, install |
Screenshots
Odoo Proprietary License v1.0 This software and associated files (the "Software") may only be used (executed, modified, executed after modifications) if you have purchased a valid license from the authors, typically via Odoo Apps, or if you have received a written agreement from the authors of the Software (see the COPYRIGHT file). You may develop Odoo modules that use the Software as a library (typically by depending on it, importing it and using its resources), but without copying any source code or material from the Software. You may distribute those modules under the license of your choice, provided that this license is compatible with the terms of the Odoo Proprietary License (For example: LGPL, MIT, or proprietary licenses similar to this one). It is forbidden to publish, distribute, sublicense, or sell copies of the Software or modified copies of the Software. The above copyright notice and this permission notice must be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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