Data flow matters in a human capital management platform because an employee change often has consequences beyond the screen where it is entered. A new hire may need to appear in payroll, receive an account, and become visible to a manager. If the right information arrives late, reaches the wrong record, or is rejected without follow-up, the employee record can look correct while the real outcome is incomplete.
Reliable data flow establishes where each value comes from, how a person or assignment is identified, when a change should apply, and how the receiver confirms the result. Speed is only part of the problem. A fast connection that delivers the wrong version of a record is still a bad connection.