Our extension adds the Rich Data to the source code of your website pages. In order to check what was added and if there are any errors or warnings, please, use the following testing tool. In this tool, you can insert the URL or source code of a page and test it.
The extesnion provides two options for configurable products a default one and a list of simple products. If you want to add a list of simple products, go to CMS>SEO Toolkit>Rich Data>Product and set the 'Set configurable products as a list of simple products offers' to 'Yes'.
There is no universal answer to this question as it depends on many factors, for example, how often your site is crawled by Google.
Once you’ve enabled rich snippets for your store, check them in Google Data Highlighter. If everything is ok, you will need to wait for Google to re-crawl your site and understand the markup found there.
Unlike other types of markup, search box markup will work only if Google already displays it for your site. This markup ensures that all the searches performed in this search box in Google SERPs will be redirected to search results found on your site.
Note that you should have a significant number of branded searches, only this way you will qualify for a search box in Google.