Analysis for Office 1.4.7 Can't do calculation based on HANA data

Hi,

We are currently using Analysis for office 1.4.7 based on HANA data. When we try to use calculation, we got following error.

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Nested exception. See inner exception below for more details:

Unable to execute SQL statement (CREATE_COLUMN_VIEW) \: CREATE OLAP SCENARIO '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<cubeSchema operation="createCalculationScenario" version="3">

    <calculationScenario name="POC-zmlf-fico-histcopatma-pkg/CALV_SHCOPATMA_MUL_1408373161431" schema="_SYS_BIC">

        <scenarioHints createInMemoryOnly="false"/>

        <dataSources>

            <analyticDataSource view="POC-zmlf-fico-histcopatma-pkg/CALV_SHCOPATMA_MUL" schema="_SYS_BIC" name="columnViewSource">

                <attributes>

                    <allAttribute/>

                </attributes>

            </analyticDataSource>

        </dataSources>

        <calculationViews>

            <aggregation defaultViewFlag="true" name="defaultAggregation">

                <inputs>

                    <input name="columnViewSource"/>

                </inputs>

                <viewAttributes>

                    <allViewAttribute/>

                </viewAttributes>

                <keyfigures>

                    <allKeyfigure/>

                     <calculatedKeyfigure datatype="double" aggregationType="sum" name="[Measures]_Formula1">

    <formula>("G_QVVNTW" - "ZKGPSTD")</formula>

</calculatedKeyfigure>

                </keyfigures>

            </aggregation>

        </calculationViews>

    </calculationScenario>

</cubeSchema>' (ERROR [S1000] [SAP AG][LIBODBCHDB32 DLL][HDBODBC32] General error;258 insufficient privilege: Not authorized)

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Currently the account we use has select access to "_SYS_BIC". What else do we need in term of priviledge?

Thanks.

Terry