How To Fix /SAPAPO/PDEM404 - Error when calculating duration of a period (from &1 to &2)

/SAPAPO/PDEM404 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PDEM -

• Message number: 404

• Message text: Error when calculating duration of a period (from &1 to &2)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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/SAPAPO/PDEM404 - Details

• The SAP error message /SAPAPO/PDEM404 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the calculation of the duration of a period. This error message indicates that there is a problem with the time period specified, which can arise from various causes. Here’s a breakdown of the potential causes, solutions, and related information:
  Causes:
  
  
  Invalid Time Period: The start date (&1) and end date (&2) specified for the period may not be valid. This could be due to incorrect formatting or logical inconsistencies (e.g., the start date is after the end date).
  
  
  Calendar Settings: The calendar settings in the system may not be configured correctly. This includes issues with factory calendars, holiday calendars, or time zone settings.
  
  
  Data Consistency Issues: There may be inconsistencies in the master data or transaction data that affect the calculation of the period duration.
  
  
  
  Configuration Issues: The configuration settings for the