[Yandex Cloud documentation](../../../index.md) > [Yandex DataLens](../../index.md) > Troubleshooting > Window function has no aggregated expressions among its arguments

# [Yandex DataLens] Window function has no aggregated expressions among its arguments

`ERR.DS_API.FORMULA.VALIDATION.WIN_FUNC.NO_AGG`

Make sure to use an [aggregated expression](../../concepts/aggregation-tutorial.md#datalens-aggregation) as an argument of your [window function](../../function-ref/window-functions.md) (window functions must accept measures as arguments).