Best practices to create an employee using Workers API and use that employee as Salesperson

Summary:

Hi

We are trying to use employees created with the Workers API as sales persons in AR transactions (sales invoices)

With the EMPS API we needed to jump into some hoops to do what was needed. After creating the employee with EMPS we needed to use an OTBI report to get the Party ID of the employee and then run two SOAP calls mergeResource (in ResourceServiceV2) and mergeResourceSalesrep (in SalesPersonService) to get the sales rep configured.

We try to do something similar with the Workers API but it doesn't seem to work.

We think the previous approach was not correct, partially because we are mixing REST and SOAP calls, so we'd like to do a step back and ask the initial question: