"Auto Pricing" overwrites manually entered Purchase Price

[JustusRijke]

Please verify that this bug has NOT been raised before.

• I checked and didn't find a similar issue

Describe the bug*

Note: this is more or less a duplicate of #7600, but because that was targeting the previous UI I thought it might be better to raise a new issue.

When modifying the purchase price of a line item of a purchase order, the price entered by the user is overwritten by the Auto Pricing functionality. This leads the user to believe the price has been modified, where in fact it stayed the same.

Steps to Reproduce

1. Open a purchase order with line items with historical pricing information, e.g. https://demo.inventree.org/web/purchasing/purchase-order/1/line-items
2. Edit a line item -> modify purchase price -> submit
3. Purchase price hasn't changed...

Expected behaviour

When modifying the purchase price, the "Auto Pricing" slider should disable automatically.

It'd be nice if, when pressing enter, the form is submitted.

Deployment Method

Other - added info in Steps to Reproduce

Version Information

InvenTree-Version: 1.2.0 dev
Django Version: 5.2.8
Commit Hash: 770f7a2
Commit Date: 2025-11-16
Commit Branch: null
Database: django.db.backends.postgresql
Debug-Mode: False
Deployed using Docker: True
Platform: Linux-5.15.0-100-generic-x86_64-with-glibc2.41
Installer: DOC
Active plugins: false

Try to reproduce on the demo site

I tried to reproduce

Is the bug reproducible on the demo site?

Reproducible

Relevant log output

[SchrodingersGat]

@JustusRijke thanks for reporting - I've got an idea of how to fix this but need some time to look into it

[SchrodingersGat]

Potential fix incoming in #10867

[SchrodingersGat]

@JustusRijke I believe that this has now been addressed - can you please check the current behavior on master branch (i.e. in demo server if you don't run on master) and confirm?

[JustusRijke]

@SchrodingersGat Just tried on the demo server, the problem is still there. Changing the purchase price on this line item and saving it has no effect. Which makes sense, because the Auto Pricing slide is still enabled.

Version:

InvenTree-Version: 1.2.0 dev
Django Version: 5.2.9
Commit Hash: bed83bc
Commit Date: 2025-12-09
Commit Branch: null
Database: django.db.backends.postgresql
Debug-Mode: False
Deployed using Docker: True
Platform: Linux-5.15.0-100-generic-x86_64-with-glibc2.41
Installer: DOC
Active plugins: false

[SchrodingersGat]

@JustusRijke ah ok, subtle difference there. Would you be able to submit a patch to address this?

[JustusRijke]

@SchrodingersGat I can take a stab at it but the InvenTrree front-end stack is something I've never worked with so it might take some time.

FYI: I noticed that the wanted behavior (automatically disabling the auto pricing slide when entering a price) works fine when adding a new line item. It's just that this functionality is not yet implemented when modifying an existing line item.

[SchrodingersGat]

If you use the devcontainer setup it's not too bad :)

• https://docs.inventree.org/en/stable/develop/contributing/
• https://docs.inventree.org/en/stable/develop/devcontainer/
• https://docs.inventree.org/en/stable/develop/react-frontend/