Hi Masa,
I already pasted the network element URL in my earlier post and thought you are asking for the xml URL. No issues, please find below URL from Network element.
When I gone through the error log for Approve Purchase Requisition, I am getting error "Backend error occured. T100 Info:GBAPP_APV_MSG-013".
When, I checked with URL http://xxx:8000/sap/opu/odata/sap/gbapp_prapproval;mo/LaunchPageCollectionfrom network element in NW Gateway client, getting below error
<?xml version="1.0" encoding="utf-8" ?>
-<error xmlns="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<message xml:lang="en">Workflow Task Type is not passed as filter criteria</message>
<timestamp>20140717082602.1410000</timestamp>
<SAP_Note>See SAP Note 1797736 for error analysis (https://service.sap.com/sap/support/notes/1797736)</SAP_Note>
</Error_Resolution>
-<errordetails>
<message>Workflow Task Type is not passed as filter criteria</message>
<propertyref/>
<severity>error</severity>
</errordetail>
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Regards,
S.Srikanth