To add Best seller as sorting option

Requirement
The Best Sellers extension adds a sorting option that lets you showcase best-selling items in your web store. Best Sellers can be used in several ways:

• Sort your product list page by best-selling items
• Set up specific merchandising zones to showcase best-selling items
  
  

Solution
To install the SC Best Sellers SuiteApp:

1. In NetSuite, go to Customization > SuiteBundler > Search & Install Bundles (Administrator).
2. In the Keywords field, enter the Bundle ID or ‘best sellers’ and click Search.
3. Verify that the SC Best Sellers SuiteApp is returned in the search and select it.
4. Review the SuiteApp details and then click Install.
   
   

To set up a best seller field as a search, facet, or sort field for your website:

1. Go to Commerce > Websites > Website List (Administrator).
2. Click Edit for the website where you want to set up best seller sorting.
3. Navigate to the Search Index tab.
4. Go to the Search Fields, Facet Fields, or Sort Fields subtab, depending on whether you want to use Best Sellers as a search, facet, or sort option.For more information on search settings, see Search Settings Overview.
5. In the Field Name list, select the best seller custom fields and click Add.You can add any or all of these fields according to whether you want to determine best-selling items by sales quantity or sales amount.
6. Click Save.