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| Odoo Apps Dependencies |
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| Lines of code | 122 |
| Technical Name |
oyoor_pricelist_max_qty_rule |
| License | OPL-1 |
| Website | https://www.linkedin.com/in/said-yahia-a3a64261 |
| Versions | 13.0 14.0 15.0 16.0 17.0 18.0 19.0 |
Price List with Max Qty Rule
Add an upper quantity boundary to any pricelist rule — so special pricing only applies when the sold quantity stays within your defined ceiling.
What does this module do?
Odoo's standard pricelist items allow a Min. Quantity threshold — but there is no built-in ceiling. This module adds a Max. Quantity field to every pricelist rule, giving you full range control over when a price applies.
The Core Problem
Standard Odoo pricelists trigger a rule for all quantities above the minimum. You cannot stop a promotional price from applying when a customer orders a very large quantity — which can erode margins unintentionally.
Bounded Pricing Rules
Set a Max. Quantity on any rule. If the ordered quantity exceeds that ceiling, Odoo automatically skips the rule and falls back to the next matching rule — or the product's list price.
Works in Sale & POS
The quantity check runs at the Odoo core pricing engine level, so it applies consistently in both Sales Orders and the Point of Sale module without extra configuration.
Pricing logic, step by step
The module hooks into Odoo's native _is_applicable_for method on product.pricelist.item.
Configure a Pricelist Rule
Open any pricelist and add or edit a rule. Two quantity fields now appear side by side: Min. Quantity (already existed) and the new Max. Quantity.
Set Your Ceiling
Enter a non-zero integer in Max. Quantity. A value of 0 means "no ceiling" — the rule behaves exactly as before the module was installed.
Odoo Evaluates the Rule
When a sale or POS line is computed, Odoo calls _is_applicable_for. The module intercepts: if max_quantity is set and the ordered quantity exceeds it, the rule returns False — it is skipped.
Fallback Pricing Applies
Odoo continues evaluating remaining pricelist rules in priority order. If none match, it falls back to the product's standard sales price — protecting your margins automatically.
Everything included
New Max. Quantity field on Pricelist Items
Visible in both the tree (list) and form views of pricelist rules — inserted cleanly right after Min. Quantity via XML inheritance.
Zero = No Ceiling (fully backward-compatible)
The default value is 0, which disables the upper-bound check. Existing pricelist rules behave identically after installation.
Applies to Sales Orders & Point of Sale
Implemented at the pricing engine level, not the UI layer — so the rule is enforced anywhere Odoo computes a price from a pricelist.
Community & Enterprise compatible
Depends only on base and product — no Enterprise-only dependencies. Installs on both editions without modification.
Lightweight — no new menus or models
A single model extension (product.pricelist.item) and three view patches. No migrations, no extra security rules, no configuration screens.
Core implementation
The entire business logic lives in a single Python method override on product.pricelist.item.
class PricelistItem(models.Model): _inherit = "product.pricelist.item" # New upper-bound field — default 0 means "no ceiling" max_quantity = fields.Integer('Max. Quantity', default=0) def _is_applicable_for(self, product, qty_in_product_uom): # Call original Odoo logic first res = super()._is_applicable_for(product, qty_in_product_uom) self.ensure_one() product.ensure_one() # If a ceiling is set and qty exceeds it → skip this rule if self.max_quantity and not qty_in_product_uom <= self.max_quantity: return False return res
Tech stack & compatibility:
Need help?
The author is available for support, customisation, and questions about this module.
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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