Previous, RunningValue or RowNumber aggregate functions used in the data cells of the {0} '{1}' refer to grouping scopes ...

Previous, RunningValue or RowNumber aggregate functions used in the data cells of the {0} '{1}' refer to grouping scopes in both the columns and rows of the {0}.  The scope parameters of all Previous, RunningValue and RowNumber aggregate functions within a {0} can refer to row groupings or data column groupings, but not both.