Does anybody configured their 11i or 12i applications to be accessed by external users i.e. supplie

 Currently we are Oracle 11.5.10.2 release running GL, AP, PO, AR, FA, XTR, CE, ....applications.

We have requirements to allow access to our external users such as volunteers and suppliers

to access our Finanacial applications.

I would like to know If any of you have opened your Financial applications to external users

and what is needed to be implemented from infrastructure and applications side.

Specifically in iExpense, GL and PO applications we have request to allow external authorized

users.

Any assistance, information, white papers that can help us with this request is greatly appreciated.

Thanks