How To Fix /SAPAPO/PDEM326 - Correction Period Settings: Fill "Start Date of Demand History"

/SAPAPO/PDEM326 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PDEM -

• Message number: 326

• Message text: Correction Period Settings: Fill "Start Date of Demand History"

Self-Explanatory Message

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/SAPAPO/PDEM326 - Details

• The SAP error message /SAPAPO/PDEM326 indicates that there is an issue with the correction period settings in the Demand Planning (DP) module of SAP Advanced Planning and Optimization (APO). Specifically, it suggests that the "Start Date of Demand History" has not been filled in, which is necessary for the system to process demand history correctly.
  
  Cause:
  The error typically arises due to one of the following reasons:
  
  Missing Configuration: The "Start Date of Demand History" has not been defined in the configuration settings for the demand planning process.
  Incorrect Settings: The settings may have been incorrectly configured, leading to the absence of a valid start date.
  Data Entry Error: There may have been an oversight during the data entry process, resulting in the field being left blank.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Access the Configuration:
  
  Go to the SAP Easy Access screen and navigate to the Demand Planning area.
  Use transaction code /SAPAPO/DP or navigate