Hi,

The error “Quant’s editing is restricted, you can’t do this operation” occurs in Odoo 18 when you try to manually edit a stock quant linked to tracked products, reserved quantities, or system-generated stock moves. Odoo restricts direct modifications to these quants to maintain inventory consistency and accuracy.

To fix the issue, you should perform the adjustment through the Inventory Adjustment feature instead of editing quants directly. Go to Inventory → Operations → Inventory Adjustments, create a new adjustment, choose the location, add the product, enter the lot or serial number, and set the counted quantity before saving and validating it.

If the problem continues, check that the lot number isn’t reserved in another transfer, confirm you’re adjusting the correct internal location, and ensure the product’s tracking type matches your data. Direct quant editing is intentionally blocked in Odoo 18 to prevent inconsistencies, so the proper workflow is always through inventory adjustments or stock moves.

Hope it helps

Hello,
The system is blocking this action because direct editing of certain stock quant fields (like product, location, lot, package, or owner) isn’t allowed while in inventory mode.

This restriction ensures that stock integrity is maintained - those values can only be changed through proper inventory adjustments or stock moves.

Use Inventory Adjustments or Transfers to make these changes instead of editing the quant directly.

Hope it helps..