To automatically register products of type "Storage" as fixed assets when purchased through a purchase order, please follow the steps below:

1. Product Configuration

Navigate to Products > Products in Odoo.

Create or edit the relevant product (such as an SSD or hard drive), and ensure the following:

• Set the product type to "Storage". If "Storage" is a custom type, you may use product categories or tags to identify it.
• Under the Accounting tab, enable the option Create Asset.
• Select an appropriate Asset Model, such as "IT Equipment" or "Storage Assets".

2. Asset Model Setup

If an appropriate asset model does not exist, go to Accounting > Configuration > Asset Models and create a new one.

Configure the depreciation method, duration, and journal according to your accounting policies.

3. Creating the Purchase Order

Go to Purchase > Purchase Orders and create a new order.

Add the product configured as "Storage" and confirm the order.

4. Receiving the Product

Validate the receipt of the product in the system once it has been delivered.

5. Vendor Bill and Asset Generation

Create and post the vendor bill associated with the purchase order.

Upon posting the bill, Odoo will automatically generate a draft fixed asset using the selected asset model.

Navigate to Accounting > Assets to review and validate the asset.

Optional Automation

If "Storage" is a custom classification, and you would like this behavior to be applied automatically for all such products, you may consider adding automated rules using Odoo Studio or custom development. This can help ensure the correct asset model is always applied to these products.