How to Implement Looping in Attribute Mapping Using REST API in CPQ (Similar to SOAP API)?

Summary:

Hi Team,

In our project, we recently migrated from SOAP API to REST API for integrating Oracle CPQ with Oracle Sales Cloud (OSC).

Earlier, while using the SOAP Import API, we were able to implement looping logic in attribute mapping. Specifically, we used to loop through the Opportunity Resources and fetch the PartyName based on a specific Role Name, and then map that value to a CPQ attribute. This logic was working successfully with the SOAP API.

However, after migrating to the REST API, we are unable to implement the same looping or conditional mapping in the attribute mapping configuration.