Hi Vineet,
Most of companies I believe using FEBAN and not FEBA, where N goes for New.
When the EBS is loaded into SAP it does not mean it is posted in SAP.
Certain things like bank fees can be posted immediately that is a one line postings, but clearing of open items often requires manual intervention.
There are quite a number of user guides if you just google for FEBAN.
Regards,
Paulo