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Calculation for futur PI tags or PI AF attribute

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Originally posted on UserVoice

Hi. I'm working with forecast data and so, using PI tags as future data instead of real-time data.
If I want to display my forecast into a PI Vision screen, I need to feed the period from *-5d to *+3d. And it works for the PI tags. But it doesn't work for calculation attribute from AF. Then, it displays NO DATA for these these attribute values.
Does calculation could be performed in the future in the next version of PI Server, AF or analysis?

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