Portal Fiori Launchpad Count

Hi All,

We have enabled Portal FLP with the SC Approval tile and configured the Service URL /sap/opu/odata/gbsrm/cartapproval;v=2;mo/WorkflowTaskCollection/$count in Portal.

However the count is showing as ERROR instead of an actual count. When look in Web Broswer's F12 Developer Tool, it is showing "Failed to update data via service sap/opu/odata/gbsrm/cartapproval;v=2;mo/WorkflowTaskCollection/$count: no handler for data - 200 OK - sap.ushell.components.tiles.applauncherdynamic.DynamicTile".

We are at a lost on what is wrong or where to investigate. Thanks in advance on any tips.