What is Salesforce Bulk API? What are Serial and Parallel Modes in the Salesforce Bulk API Feature?
Review the Salesforce page: Salesforce Integration Tips: Using the Bulk API - Serial or Parallel mode options.
To configure Data Loader to use the Bulk API for inserting, updating, upserting, deleting, and hard deleting records:
- Open the Data Loader.
- Choose .
- Select the Use Bulk API option.
- Click OK.
Bulk API modes which are also referred to as Concurrency modes are as follows:
1. Parallel mode
This is the default mode in the Bulk API. Salesforce will process all the batches in a posted job in parallel and this gives a better performance in uploading data. However, this might lead to lock contention which will cause the upload to fail.
2. Serial mode
Salesforce processes all the batches in a posted job one by one and this can help to prevent the lock contention issue that can be encountered in Parallel mode.
Salesforce Help Documentation:
Third Party Documentation: