The Attribute is Set to "Hidden from Customers"

If the "Attributes" tab shows the "Hidden from Customers" icon (Fig. 1), follow these steps to make the attribute visible:

Fig. 1

1️⃣ Go to "General Attributes"

Navigate to the "Manage Attributes" section:

Path: Product → Attributes → Manage Attributes (Fig. 2)

Fig. 2

2️⃣ Open the "General (No Type Assigned)" Tab

In Product Types, open the "General (No Type Assigned)" tab (Fig. 3).

Fig. 3

3️⃣ Enable Attribute Display

In the Attributes block, enable the display for the necessary attributes (Fig. 4)

Fig. 4

Fig. 4

Fig. 5

Fig. 5

4️⃣ Save Changes

Click the "Save" button (Fig. 5)