Most likely this error occurs from the fact that for DataSource fields (Data from other DataSource) the types are not specified.error BC30455: Argument not specified for parameter 'value1' of 'Protected Function IIF(condition As Boolean, value1 As Object, value2 As Object) As Object'.
error BC30455: Argument not specified for parameter 'value2' of 'Protected Function IIF(condition As Boolean, value1 As Object, value2 As Object) As Object'.
error BC30198: ')' expected.
error BC30201: Expression expected.
Thank you.