• Manual (or Periodic) valuation
  • No accounting entries are created for inventory movements or adjustments.
• Automated Inventory Valuation
  • Accounting entries are automatically created

For each product category you can choose between three costing methods:

• Standard Cost (uses the cost entered on the product)
• Average Cost (based on purchase prices)
• FIFO (First In First Out, also uses the purchase price from each receipt)

https://odootricks.tips/inventory-postings-valuation/

Why inventory Valuation does not Create in odoo Three Reason

https://youtu.be/9d9Z_7uOC6c

Hi,

To learn how inventory valuation works in Odoo 16, including both automated and manual methods, I recommend watching this YouTube video: https://www.youtube.com/watch?v=k4aHrxcaqLk

The video provides a clear explanation of the inventory valuation process in Odoo 16 and how it can be customized to suit the needs of different businesses

Hope it helps