Which method is efficient and scalable because it uses the product search index rather than searching the database?

Your project requires the integrating with a 3rd party PIM for importing master catalog, two storefront catalogs and pricebooks. All imports need to happen in a single job. Search indexes will also need to be re-built.

Facebook connect will be available on your storefront to allow users to log in. To configure properly the new OAuth provider. What should you need from your product owner?

There are three logging categories: category1, category1.eu, and category1.us.
In Business Manager, category1 is enabled for WARN level and no other categories are configured. All custom log targets are enabled.
The code segment below executes.

What is the result'

A company uses Salesforce to store accounts and contacts. All users have switched to the Lightning Experience user interface. The Account Hierarchy feature is used extensively to relate companies to their subsidiaries. A Solution Architect finds that the data migration process is creating duplicate contacts with different primary accounts.
Which two options can the Solution Architect use to ensure that there is only a single contact for a particular person across all the subsidiaries of a company?
Choose 2 answers