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Add known limitation for Sort By columns in Calendar Editor #255

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MariaJoseFF merged 2 commits into from
Jan 30, 2026
Merged

Add known limitation for Sort By columns in Calendar Editor #255

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Add known limitation for Sort By columns in Calendar Editor
MariaJoseFF Jan 30, 2026
10224a3
Improve spacing in Sort By limitation warning block
MariaJoseFF Jan 30, 2026
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19 changes: 19 additions & 0 deletions content/tutorials/calendars.md
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Expand Up @@ -157,6 +157,25 @@ Associated columns receive the same filter behavior as the primary column during

![Associated Columns panel in the Calendar Editor](~/content/assets/images/tutorials/calendar-associated-columns.png)

> [!WARNING]
> **Known limitation: Sort By columns and Associated columns**
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> When a column is used as a **Sort By** column for a Primary time unit column, Analysis Services implicitly treats it as an Associated column. You should **not** explicitly add that Sort By column as an Associated column in the Calendar Editor, as this will cause an error from Analysis Services (duplicate mapping).
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> For example, if you set `MonthName` as the Primary column for "Month of Year" and `MonthName` has `MonthNumber` configured as its Sort By column, then `MonthNumber` is implicitly associated. In this case, you do not need to (and should not) add `MonthNumber` as an explicit Associated column. The Sort By column will still provide the expected enhanced calendar behavior (including proper `REMOVEFILTERS()` handling) since the association is inferred.
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> Note that this behavior is asymmetric: if you instead set the Sort By column (e.g., `MonthNumber`) as the Primary time unit column, then the display column (e.g., `MonthName`) is **not** automatically treated as Associated. In that scenario, you can explicitly add the display column as an Associated column if desired.
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> A future version of Tabular Editor will add validation to prevent this configuration error.

### Time-Related Columns

In addition to mapping columns to specific time unit categories, you can mark columns as **time-related**. Time-related columns are columns in your Date table that don't fit into a specific time unit category but should still receive special treatment during time intelligence calculations.
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