Hi Hasan,
Thanks a lot for your question and for your kind words on our solutions. Appreciated!
Please find my answers below. I am not an ABAP specialist and I will seek internal help to answer 3.
1. SAP BO PA test various time series modeling approaches using proprietary techniques (not specifically related to ARIMAX/Croston) and taking into account your potential extra predictable variables as an important input to refine the time series forecasting model.
My opinion would be to test both approaches in case you want to compare. You can start with Auto and stop here if the approach/results suits you. You can also go manual, use Expert Analytics on top of PAL/R algorithms and see if the approach is fine for you.
2. That's correct. SAP BO PA and APL are in reality using the same time series forecasting algorithm.
3. See before
4. This one is not applicable due to 2.
Kind regards,
Antoine
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