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When referring to a column, it is best to use a fully qualified column reference, to avoid accidentally invoking a measure.

For more detailed information, see Calculated Columns in Power Pivot.

However, avoid using the same name for a calculated column and a measure, as this can lead to confusing results.It appears in the Pivot Table Fields list and is available to all users of the workbook.For more detailed information, see Measures in Power Pivot.Unlike in Excel, however, you cannot create a different formula for different rows in a table; instead, the DAX formula is automatically applied to the entire column.When a column contains a formula, the value is computed for each row.