Fiori Apps and ERP integration

Dear Experts,

We are trying to set up SAP Fiori Apps - My Time-sheet and Approve time sheet.  At Front end we have Fiori portal and at the back end we have integrated it to SAP ERP system(Demo system it has no data) . We are trying to pull up data in these app( My Time-sheet and Approve time sheet) on Fiori portal but failed.Can anyone guide how to reflect data in Fiori system. Tried to search already available posts but facing problem as not from HCM background.

We have tried to configure data by assigning Perner number to FIori portal ID and we are able to achieve calender but unable to populate data in all drop downs.

You can also send solutions on below provided E-mail ID

rmanchanda.rm@gmail.com

Thanks and Regards