Hello,
I’ve encountered a major limitation in the Odoo POS promotion system (v17 Online) that affects real-world retail use.
Use case:
- I award 1 loyalty point per unit purchased.
- For every 2 points, the customer receives a 100% discount on the cheapest item in the order.
The problem:
When a customer adds products like:
- 1 x €1.45
-
1 x €1.05
✅ The €1.05 product is correctly made free (1st reward).
Then the customer adds:
- 1 x €1.50
-
1 x €1.60
❌ Another reward is triggered, but it is again applied to the same €1.05 item instead of applying to the next cheapest product (like €1.50).
Root cause:
Each reward is applied independently, with no awareness of which product lines have already been used for previous rewards. This leads to multiple discounts being applied to the same item, which breaks the logic of incremental rewards per threshold.
Business impact:
This behavior makes it impossible to create real-world retail promotions such as:
“For every 2 products purchased, get 1 different product (the cheapest one not yet rewarded) for free.”
Odoo support confirmed that this is the expected behavior, and suggested changing the entire promotion strategy or sequence of product entry — which is not acceptable from a business standpoint.
Expected behavior:
Each reward should apply to a unique, previously unrewarded line, ensuring that promotions behave fairly and logically.
Feature request:
Please consider improving the POS reward engine to:
- Track lines already used for rewards
- Apply new rewards only to remaining eligible items
- Avoid stacking rewards on the same product line
This would align Odoo POS with standard retail promotion practices and greatly improve its flexibility for real-world usage.
If anybody has got a workaround that can be used in the real world not impacting the operation of the business, I'd be interested to hear about it.
Thank you.
