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mixed periodicities in a forecast are not allowed ???

Former Member
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Hi All,

When I try to run the forecast in DP in BACKGROUND then I see following message "mixed periodicities in a forecast are not allowed", but when I execute the forecast in foreground it works completely fine with that forecast profile and everything same.

Can anyone suggest the way to handle this???

Best Regards,

Chandan Dubey

Accepted Solutions (1)

Accepted Solutions (1)

tibor_nagy
Contributor
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Hi Chandan,

This is the standard design in the background.

If you run your forecast in batch you can only use one periodicity and

not mixed periodicities. Per design it is not allowed to

use different periodicities for forecast in mass processing.

In interactive demand planning, the forecast key figure and other key

figures, such as the adjusted past within the past and forecast horizon

are saved independently of the planning horizon of the planning book or

planning view. This means in particular that the forecast also saves

results outside of the planning horizon for the planning book or

planning view.For performance reasons, however, the horizon of the

planning book must be greater than the horizons in the forecast profile

in the background processing.It is sufficient therefore if the horizon

of the planning book in greater than or equal to the forecast horizon.In

this case, the forecast results are saved but the adjusted past or the

expost forecast cannot be saved.Therefore, a warning message indicating

that the horizon of the planning book does not contain the past period

for the forecast is issued here.In addition, note that for performance

reasons the period units of the planning book and forecast profile must

be identical in the background processing.This is directly due to the

fact that you are not allowed to you use planning books with mixed

period units in the background processing.These restrictions do not

exist in the interactive planning.

I hope this helps.

Regards,

Tibor

Furthermore, note that data is not saved in lines or areas that are not

ready for input in the background processing.Therefore if, for example,

you want to save the adjusted past, then the past horizon for the

planning book must be ready for input.

Answers (1)

Answers (1)

Former Member
0 Kudos

note that there are certain "observed" discrpencies between the results of forecast in foregroud and background with the same periodcity. but running a forecast in background is more reliable as the error messages are enunciated in entireity unlike in foreground. be very cautious with automodel 2. it give wrong message .. esp of insufficient history. (even though i had 36 periods) when run in foreground.looks like undocumented and unexplained.

Regards,

Loknath