Co-existence - Fusion to EBS R12

Summary

Co-existence - Fusion to EBS R12

Content

We are in process of implementing Fusion Core HR. Our Finance will stay in EBSR12.  We need to send data from Fusion to EBSR12 so that the finance application can consume the HRdata required for approval and other transactions in Finance EBSR12.

i wanted to check if some one has done similar excercise and what are challenges they ran into?.

if yes, DId you use go with batch transnfer from Fusion to EBS(files) or relatime using using SOA/Rest API services. Please share Pros and cons.

Any details around Rest API's are also appreciated.