The devil is in the details. The sequence of update and the logic is probably the hardest part. Without knowing too much about your internal processes, Workday would be the employee system of record and that would mean that all employee changes start there and then go to NetSuite. From NetSuite they would go to Concur (and Nexonia).

@NetSuite_Sherpa Thank you for the replies and information.

My pleasure. I'm working on a very similar project for my third client now. Trying to evaluate where best to store the single source of Truth for employee, cost center, line manager and things of that nature. Please feel free to DM me if you have any additional questions I'm glad to help.