Integration between ECC and SAP Fiori

Hello All,

In our architecture, the WO status updates are happening from UI5 or Fiori app.

User logs in to fiori app and udpates status (e.g enroute, onsite etc.), which updates in WO.

I want to know, what is the integration between ECC and FIori.

e.g. if a user udpates status at 12PM, but it has not updated in ECC. How can i check at what stage it is failing.

Just lilke we check idocs / proxy for messages coming from non ECC system to ECC.

Similarly where can I check flow between Fiori and ECC.

Thanks,

Piyush