Employee profile Integration between PeopleSoft and Successfactors Using Dell Boomi

Dear Experts,

we have requirement to integrate the data between PeopleSoft and Successfactors using Dell Boomi where we are not having direct Peoplesoft connector . what are the possible ways to integrate the data. As of my knowledge if customer places the file in sftp then we can achieve this. what are the other ways to integrate from peoplesoft with successfactors.Please suggest me.

Regards

Giridhar.