Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Introduction to Bulk API 2.0 and Bulk API

Both Salesforce Bulk APIs are based on REST principles and are optimized for working with large sets of data. Use them to insert, update, upsert, or delete many records asynchronously. You submit a request and come back for the results later. Salesforce processes the request in the background.

Any data operation that includes more than 2,000 records is a good candidate for Bulk API 2.0 to successfully prepare, execute, and manage an asynchronous workflow that uses the Bulk framework. Jobs with fewer than 2,000 records should involve “bulkified” synchronous calls in REST (for example, Composite) or SOAP.

Using Bulk API 2.0 or Bulk API requires basic familiarity with software development, web services, and the Salesforce user interface. Because both Bulk APIs are asynchronous, Salesforce doesn’t guarantee a service level agreement.

Bulk API 2.0 and Bulk API Developer Guide

Introduction to Bulk API 2.0 and Bulk API