Oracle.apps.fnd.framework.OAException: Region could not be found in AK_REGI

Question

Hi,
I am new to OA Framework and current developing a small application.
Here is my application setup:
I have a page called ComplaintsMainPG.
This page just has -->pageLayoutRN-->HeaderRN-->an item (link with Destination URI as OA.jsp;page=/mycompany/oracle/apps/ego/complaint/decision/webui/QuestionairePG&country=US&questionId=USQ1&retainAM=Y
The next page where I want user to navigate to is: QuestionairePG
This page has a VO with the following query:
select * from xx_my_table where :1=country and :2=question_id
When I run my 2nd page QuestionairePG directly ...I get the error: not all values bound (seems logical)
So, I try to populate the binds by passing them as a part of URL from the 1st page.
What is wrong that I am doing? Is there a better way to pass the parameters to my VO so that all bind variables are bound?
When I compile my first page, I get the warning (not error) that:Warning: If "AM Definition" property is the same for more than one region in a page, then each region needs a different "AM Instance". Error on components "/mycompany/oracle/apps/ego/complaint/decision/server/ComplaintMainPG.HeaderRN" and "/mycompany/oracle/apps/ego/complaint/decision/server/ComplaintMainPG.pageLayoutRN".
And when I run I get the error:
oracle.apps.fnd.framework.OAException: Region could not be found in AK_REGIONS; RegionCode: RegionApplicationId: -1
Is this a serious thing that I am missing out?
I am very much new to OA Fwk and
any help is highly appreciated.
Thanks
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Answer 1

Devang,
If you are new to OAF, better go through the initial chapters of Dev guide and do the sample page create. Unless the basics are not clear, you will be getting stuck at small issues.
Coming to current issue, there seems to be many things out of order:
1. You have assigned same AM to 2 different region on the page.
2. In your VO query "select * from xx_my_table where :1=country and :2=question_id" , how are you doing the binding? Have you written the code for it. Assuming country and question_id are columns names, it should be like "country=:1 and question_id=:2"
3. AK region error might be coming because of some explicit application id set by you in the page xml.
My advise will be do some sample pages as per the dev guide before starting on your own.
--Shiv