From single source record, insert multiple records into another entity

In a CRM custom entity, I have a list of services we provide, and each service has a property (field) called Business Area. I have another custom entity called Plan, and each Plan has an assigned business area. I would like to take my list of services, and for each plan that matches the services' business area, create a record in a third entity (Plan Services) that links the service to the Plan. All of the CRM components are created and wired up, but I'm not sure how to go about iterating the records in Scribe Insight. Any architectural guidance would be greatly appreciated.

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