| Availability |
Odoo Online
Odoo.sh
On Premise
|
| Odoo Apps Dependencies |
•
Purchase (purchase)
• Discuss (mail) • Invoicing (account) |
| Lines of code | 231 |
| Technical Name |
purchase_dynamic_uom_conversion |
| License | OPL-1 |
| Website | https://www.ahex.co |
Purchase Dynamic UoM Conversion
The Purchase Dynamic UoM Conversion module enhances Odooâs purchasing process by enabling flexible unit-of-measure handling. It allows you to purchase goods in a completely different unit than you use for stocking, with automated quantity calculations and synchronized pricing.
This is highly useful when your suppliers use different units (like Kilograms) than your internal stock units (like Boxes or Units).
Key Features
Define a Purchase UoM different from the base (stock) UoM
Maintain a robust conversion ratio (e.g., 1 Unit = 2.5 KG)
Automatically calculate purchase quantities
See Price per Purchase Unit & Price per Base Unit simultaneously
Show Vendor Product Codes directly in purchase reports
Setup Guide
Step 1 - Install the Module
- Copy the module folder to your Odoo custom addons directory.
- In Odoo, go to Settings and activate Developer Mode.
- Go to Apps - Update Apps List and click Update.
- Search for Purchase Dynamic UoM Conversion and click Install.
Requirements
- Odoo Version: Odoo 19 (Community or Enterprise)
- Dependencies: Purchase and Product modules must be installed
Product Configuration
Before using the feature, configure each product. Navigate to Sales â Products â Products and open the Conversion Details section of a Product:
| Field | Description | Example |
|---|---|---|
| Base UoM | Default stock unit (auto) | Units |
| Price per Base UoM | Cost per base unit | $12.50 |
| Purchase UoM | Vendor's unit of measure | kg |
| Conversion Ratio | Purchase UoM quantity per base unit | 2.5 |
| Price per Purchase Unit | Vendor's price listed in their quote | $5.00 |
Field Behavior:
- Updating Price per Purchase Unit updates Base Price
- Updating Base Price recalculates Purchase Price
- Changing Conversion Ratio recalculates pricing
Validation Rule:
Conversion Ratio must be greater than 0
Creating a Purchase Order
1. Add Product
Navigate to Purchase â Orders â Purchase Orders and click Create. Select your Vendor and add the properly configured product.
2. New Fields in Order Line
- Conversion Qty: Quantity shown exactly in the Purchase UoM
- Purchase UoM: The Vendor's specific unit (e.g., kg)
- Price per Conversion: The exact price per Purchase UoM
3. Pricing Logic
The system instantly calculates: Unit Price = Price per Conversion à Conversion Ratio. You can manually edit the Price per Conversion and the Unit Price updates automatically.
Purchase Reports
Request for Quotation (RFQ)
Includes:
- Serial Number (S.No)
- Quantity in Purchase UoM
- Placeholder Price column
Purchase Order Report
Includes:
- Serial Number (S.No)
- Vendor Product Code
- Quantity (Purchase UoM)
- Price format: Price per Purchase Unit / UoM (e.g., 5.00 / kg)
Frequently Asked Questions
Q: Conversion fields are not showing on my product?
A: Ensure Conversion Ratio is greater than 0, a Purchase UoM is set, and the Price per Purchase Unit is filled.
Q: My changes are not reflecting in an existing PO?
A: Existing line items store values as they were at creation time. Re-select the product or update the quantity to trigger the recalculation.
Q: Why is the Vendor Code missing in my report?
A: You must add the specific supplier in the Product's 'Supplier Info' tab and fill in their Vendor Product Code.
Q: Validation error says ratio must be > 0?
A: You must use strictly positive values. Use decimals like '0.001' if you are converting to larger units (like 1 Gram = 0.001 KG).
Q: Will this mess up my warehouse inventory quantities?
A: No. Inventory continues to use the Base UoM for all stock valuations and counts. This conversion logic only applies to the Purchasing environment.
Support
- Ensure the Purchase module is installed and active in your Odoo instance.
- Calculations execute in real-time natively using Odoo floating-point structures.
For purchase support, installation assistance, or customisation enquiries, please contact us through the channel where you purchased this module.
Connect With Us
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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