How To Fix /SAPAPO/OM_ERROR2143 - Date lies before first date

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 143

• Message text: Date lies before first date

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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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR2143 - Date lies before first date ?

  The SAP error message /SAPAPO/OM_ERROR2143 indicates that a date being processed in the system is earlier than the first date defined in the planning book or the relevant data structure. This typically occurs in the context of Advanced Planning and Optimization (APO) when trying to access or manipulate data that is outside the defined time horizon.
  
  Cause:
  
  Date Configuration: The date you are trying to use (e.g., for a planning run, forecast, or order) is set before the start date defined in the planning book or the data model.
  Data Entry Error: A user may have inadvertently entered a date that is not valid according to the planning parameters.
  Master Data Issues: The master data (like product, location, etc.) may not be set up correctly, leading to incorrect date ranges.
  Time Period Settings: The time period settings in the planning book or the data view may not be aligned with the data being processed.
  
  
  Solution:
  
  Check Planning