Oracle OIE customization message could not return

Hi All,

As Oracle suggested ,if you want to get the customization message, you could extend the package---AP_WEB_OA_CUSTOM_PKG.  So I extend the package by the following steps.

Steps:

1. We created a customized package to validate the expense report, the package has 2 parameters: same with AP_WEB_OA_CUSTOM_PKG.

2. Then we customize the AP_WEB_OA_CUSTOM_PKG, call our package using GetCustomizedExpRepSummary function in the AP_WEB_OA_CUSTOM_PKG.

3.I could get the message through the following script using sql/plus

1   declare

2    P_ReportHeaderId varchar2(20):='10165';

3  P_CurrentPage varchar2(40) :='OIEReviewPage';

4    l_return  varchar2(1000);