OBIEE11g - Writeback Error

Question

Hi All,
I am trying to test out the Writeback functionality in OBIEE11g 11.1.1.6.4. BUT getting the following error:
Write Back Error
An error occurred while writing to the server. Please check to make sure you have entered appropriate values. If the problem persists, contact your system administrator.
I Have Done The Following:
First, I created two tables in sql database. Joined them. Enabled the writeback check box for COL1 from Table1 in RPD. Set the permissions to Read/Write.
Then I added the following tag in instanceconfig.xml file just above </ServerInstance>
<LightWriteback>true</LightWriteback>
After that, I created a new analysis. Inserted COL1 and COL2 into answers. Enabled Writeback for COL1 in its column properties. Did the settings in the table properties for writeback.
Then created WriteBack.xml file and placed it in $MW_HOME/instances/instance1/bifoundation/OracleBIPresentationServicesComponent/coreapplication_obips1
/analyticsRes/customMessages directory.
NOTE: customMessages directory was not present so I created it manually.
<?xml version="1.0" encoding="utf-8" ?>
<WebMessageTables xmlns:sawm="com.siebel.analytics.web/message/v1">
<WebMessageTable lang="en-us" system="WriteBack" table="Messages">
<WebMessage name="WriteBack">
<XML>
<writeBack connectionPool="Connection Pool">
<insert> </insert>
<update>UPDATE USER_MGMT SET COL1 = '@{cb6c3a1af92849c72}' WHERE COL2= '@{c48def73911167fb0}'</update>
</writeBack>
</XML>
</WebMessage>
</WebMessageTable>
</WebMessageTables>
I have restarted the services wherever required.
Now, when I run the analysis and try to update an existing value in COL1, I get the above mentioned error.
I have gone through all the posts/blogs related to this issue/error and still I am unable to find a solution.
Any help/suggestion will be highly appreciated.
Thanks n Regards
Dev

Answer 1

Hi All,
I am still getting the following error:
Write Back Error
An error occurred while writing to the server. Please check to make sure you have entered appropriate values. If the problem persists, contact your system administrator.
I have tried all, what is given in the following links, still the above error:
1) http://bidirect.blogspot.in/2011/05/writeback-for-dashboard-commentary-for.html
2) http://obieelearner.blogspot.in/2012/07/obiee-11g-write-back.html
3) https://forums.oracle.com/forums/thread.jspa?threadID=2456664&tstart=60
4) https://forums.oracle.com/forums/thread.jspa?threadID=2277734
5) http://obiee10grevisited.blogspot.in/2012/02/write-back-in-obiee11g.html
6) http://deliverbi.blogspot.in/2012/08/obiee-111162-writeback-setup.html
7) http://subhashtata.blogspot.in/2011/12/writeback-in-11g-obiee.html
8) https://docs.google.com/file/d/0BwMedcpXjz5bUS1EQ09lb3lwcDQ/edit?pli=1
9) http://rajeshthomas.blogspot.in/2012/08/writeback-analysis-in-obiee-11g-part-1.html
Any other suggestions ? I am not sure if I am missing something. Please advice.
Thanks n Regards
Dev