You can manage decimal precision settings in Odoo through the following steps:

1. Navigate to:
   Settings > Technical > Database Structure > Decimal Accuracy
2. In this menu, you’ll find a list of all the decimal precision configurations used across your system.
3. To modify the precision for product costs and prices, look for the entry named "Product Price".
4. Edit the "Digits" field to set the desired number of decimal places.

🔔 Note:

Changing the "Product Price" precision affects all documents where product price, cost, or sales price is shown.

However, existing data will not be updated retroactively—only new entries and transactions will reflect the updated precision.

Hope this helps!

Hi,

You can change the decimal accuracy as follows.

Reference

- https://www.odoo.com/sl_SI/forum/pomoc-1/can-one-change-the-product-cost-price-decimal-precision-214017

Hope it helps