What is the optimal way to update the Accounts from the external system?

A company uses an external system to manage its custom account territory assignments. Every quarter, millions of Accounts may be updated in Salesforce with new Owners when the territory assignments are completed in the external system.

What is the optimal way to update the Accounts from the external system?
A . Apex REST Web Service
B . Composite REST API
C . SOAP API
D . Bulk API

View Answer

Answer: A