How to create single NIR for multiple items through FBDI?

Summary:

Need to create a single NIR for multiple items being imported through FBDI

Content (please ensure you mask any confidential information):

We have a requirement to create single NIR when loading items through FBDI.

Spoke System Setups

New Item Request: One per Batch

Associate: Create New

Name: NIR001

Add all items: unchecked

Effective Date: Effective Immediately

In FBDI

SOURCE_SYSTEM_CODE - PIMDH

SOURCE_SYSTEM_REFERENCE - 300000000229311

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):