How To Fix /SAPAPO/PDEM_PRO_SRV020 - Realignment step, demand history and raw data of demand history changed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PDEM_PRO_SRV -

• Message number: 020

• Message text: Realignment step, demand history and raw data of demand history changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PDEM_PRO_SRV020 - Realignment step, demand history and raw data of demand history changed ?

  The SAP error message /SAPAPO/PDEM_PRO_SRV020 typically indicates that there is an issue with the realignment step in the demand planning process within SAP Advanced Planning and Optimization (APO). This error suggests that the demand history or the raw data of the demand history has changed, which can affect the calculations and processes that rely on this data.
  Cause:
  
  Data Changes: The most common cause of this error is that the demand history data has been modified after the realignment process was initiated. This could happen due to updates in the demand planning data, changes in historical sales data, or adjustments made by users.
  Concurrency Issues: If multiple users or processes are trying to access or modify the same demand data simultaneously, it can lead to inconsistencies.
  Configuration Issues: Incorrect configuration settings in the demand planning area or in the realignment process can also lead to this error.
  
  Solution:
  
  Check Data Consistency: Ensure that the demand history data is consistent and has not been altered during the realignment process. You may need to review the changes made to the demand history.
  Re-run the Realignment Process: If the demand history has been updated, you may need to re-run the realignment process to ensure that the calculations are based on the most current data.
  Locking Mechanism: Implement a locking mechanism to prevent concurrent modifications to the demand history data while the realignment process is running.
  Review Configuration: Check the configuration settings related to demand planning and realignment to ensure they are set up correctly.
  Consult Logs: Review the application logs for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO, such as /SAPAPO/DP for demand planning and /SAPAPO/PDEM for demand management.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide specific fixes or patches.
  Documentation: Review the SAP documentation for demand planning and realignment processes to understand the expected behavior and troubleshooting steps.
  Support: If the issue persists, consider reaching out to SAP support for assistance, providing them with detailed information about the error and the steps taken to resolve it.
  
  By following these steps, you should be able to address the error and ensure that the demand planning process runs smoothly.