In order to apply customization, click on “Customize” button on report create or report edit page.
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Double click on the Data Labels icon. The following modal window will appear.
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Select the measure on which data label is to be applied, formatter and number of decimal places. You can add more measures, if applicable.
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Click Ok. You will see that the Data Labels icon is highlighted.
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Click on the small tick to apply the customization.
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Thanks,
Helical Insight