Which pre-processing steps can be used to cleanse historical sales data before generating a statistical forecast in SAP IBP? Note: There are2 correct answers to this question.

Which pre-processing steps can be used to cleanse historical sales data before generating a statistical forecast in SAP IBP? Note: There are2 correct answers to this question.
A . Substitute Missing with Mean or Median in Sales History
B. Intermittency Detection and Correction in Sales History
C. Promotion Sales Lift Elimination
D. Bias Detection and Correction in Sales History

Answer: A,C