Yes, it is possible to import cost prices in Odoo. Here are the steps you can follow to import cost prices:

Go to the Inventory app in Odoo and select "Products" from the main menu.

Click the "Import" button to start the import process.

In the "Import" form, select "Product Prices" as the data type.

Upload your CSV file containing the cost prices. Make sure that the file contains columns for "Internal Reference" (product code) and "Cost Price".

In the "Mapping" section, map the "Internal Reference" field to the "Product Code" field in Odoo and the "Cost Price" field to the "Cost" field in Odoo.

Click the "Import" button to import the cost prices.

After the import is complete, the cost prices for your products will be updated in Odoo. You can check the cost prices by going to the "Products" menu, selecting a product, and clicking the "Cost" tab.