The User needs “Bulk API Hard Delete” Permission to make Salesforce BULK API V1 Hard Delete request.

1. Create a Permission Set with “Bulk API Hard Delete” Permission. Assign the Permission Set to the Integration User which will be used to perform the Hard Delete operation.

2. Create a Connected App in Salesforce.

Callback URL should be https://{Your Domain}.my.salesforce.com/services/oauth2/callback

Example:

https://test-ec-dev-ed.develop.my.salesforce.com/services/oauth2/callback

3. Get the Access token.

Endpoint URL:

https://test-ec-dev-ed.develop.my.salesforce.com/services/oauth2/token

4. Use the Access Token from Step 3 and make a POST Request to create a Job.

Endpoint URL:

https://test-ec-dev-ed.develop.my.salesforce.com/services/async/56.0/job/

Header:

Body:

<?xml version="1.0" encoding="UTF-8"?>
<jobInfo
    xmlns="http://www.force.com/2009/06/asyncapi/dataload">
  <operation>hardDelete</operation>
  <object>Account</object>
  <concurrencyMode>Parallel</concurrencyMode>
  <contentType>JSON</contentType>
</jobInfo>

5. Note down the id from the create job request.

6. Create a batch request using the job id.

Endpoint URL:

https://test-ec-dev-ed.develop.my.salesforce.com/services/async/56.0/job/7503t00000fiMQcAAM/batch

Header:

Body:

How to make Salesforce BULK API V1 Query request from PostMan?

Output: