de5c3d2a55e958662c6ecf2afc27226a3e9c6d40
Guides/ReportDesign/15.0-Expressions-in-Izenda.md
| ... | ... | @@ -18,6 +18,8 @@ An expression cannot be run on another expression. Since there can only be one |
| 18 | 18 | |
| 19 | 19 | An expression may output a value which is not the expected value for that field's data type. For example, we could use datediff() to calculate an integer number of days on a datetime column, leading Izenda to treat the integer value as a datetime. It is best practice to select a 'container' field that matches your expected output, to prevent unexpected behavior in the report designer. |
| 20 | 20 | |
| 21 | +*Note*: If you intend for this output to be used in a chart, you _must_ apply an aggregate function to this field. Click [here](http://wiki.izenda.us/FAQ/Calculated-Field-With-Expression-In-Chart) for more details. |
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| 22 | + |
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| 21 | 23 | |
| 22 | 24 | **Expressions can:** |
| 23 | 25 |