MYOB & employment hero

hi

one of my clients has puchased Employment Hero and wants it to interact with the MYOB Accountright.

the Employment Hero (EH) information is not clear - naturally i dont want EH to interact with my Entitlement Reports for employees as i use these to verify (before i do payroll) if that employee has accured enough holiday; PSL  etc. 

as I use STP and it is at that stage that i process the payslips that i allocate hours to PSL; HL etc.

has anybody integrated EH with MYOB and am i being over cautious (i dont want any double reporting of entitlements) and where exactly does EH update MYOB?

I found this - which is all double dutch and what does bidirectional actuall mean?

 After this initial connection, data will flow automatically from Employment Hero to your payroll platform, as the automatic flow of data is not bidirectional. You can however, manually trigger a data import from your payroll platform at any time. 

thanks all for your help as always :)