Oracle R12 OIE and Fusion Webcenter Integration issue resolution

Environment: Oracle EBS 12.1.3, OIE.B.DELTA.3, Oracle WebCenter 11.1.1.5, Oracle Database 11gR2, RedHat Linux5, Windows 2008 R2.
Problem:
As we continue to progress through our Oracle fusion Webcenter Imaging and Document capture with Oracle iexpense 12.1.3, we are into a critical but an interesting issue related to sending attached receipts to a supervisor.
To elaborate the issue, we can submit the ER and attach the receipts successfully. But in OIE, the “Imaged Receipts Status’ would change from ‘Required’ to ‘Received’ and ‘Report Status’ will always be ‘Pending Imaged Receipts Submission’ (see screenshot below) and the ER won’t move to supervisor. Obviously, this issue becomes critical for us due to the business rule in OIE to forward all ERs with $25 or more to the immediate supervisor.

Certainly such ‘hard to Google’  or ‘zero hit in MOS’ type issues are expected when you want to be in bleeding edge of complex technologies.
Solution:

• Create a unique OIE responsibility without associating it to an OU in your global OIE environment.
• Comment the call to the axf_apps_init procedure in axf_add_ebs_attachment procedure.
• The appuserid configured within the ExpenseReceiptProcessing BPEL composite was set to a unique apps user that will be used as part of EBS Adapter to work with OIE. Ensure the user’s appuserid is set appropriately.
• Since most of the hits you find are related to calling FND_GLOBAL.APPS_INITIALIZE, here it calls
• fnd_global.set_nls.set_parameter. Primary issue is that the procedure referenced above doesn’t use the same conventions as the one being called by Webcenter.

Also please refer to the URL http://oracletechnologistblog.wordpress.com/2011/12/14/resolving-incorrect-doc-uri-in-oracle-webcenter-ipm-11g/  that discusses another OIE-Webcenter integration issue.
Finally, thanks to the contributors Manju Chugani, Dave Sagendorf and Scott Deweese.