Step-by-step instructions
Log in to your google account & search your business on Google search tab.
Alternatively directly Sign in to your Google Business Profile.
Next, Click on "Edit products" option.
Now, Click on "Get started" button to add products.
Add the "Product name" followed by "Product Category". Here you will need to create a category that best suits your business.
After Creating a Category add "Product Price", "Product Description" & "Product Landing page URL" of your website.
When mentioning the "Product Price", use only absolute numbers; do not add letters or symbols.
Final Step is to "Upload the Product photo" & Click on "Publish" button.
Once you have published, this window appears where you can see all your products & Also add new product.
This is how your products will look on your Google Business Profile.