For compliance reporting purposes, we've built a hires report that includes data from both the HCM - Workforce Core and the HCM - Talent Acquisition subject areas. The problem is, we need a 100% accurate way to join the two subject areas. We found this discussion, but the solution appears to be for OTBI and our report is in FDI because we need to be able to report on historical data.
We're currently building a dataset by joining person number = candidate person number AND (job code from the offer = job code from Workforce Core OR projected start date = hire date). But that's not 100% accurate because some employees have been hired into the same job code multiple times, and employees' projected start date doesn't always match their hire date (if their hire date changed after the offer stage).
The fields on the report from HCM - Talent Acquisition subject area include requisition number, candidate number, requisition type, recruiter name, and recruiter person number. There are many fields from the HCM - Workforce Core subject area, including person number, location code, legal employer name, hire date, employee demographic information, manager person number, job code, remote work status, etc.
If you've built a similar report or have ideas for how it could be done, I'd be grateful for any feedback!