How To Fix /SAPAPO/DMRES820 - The date does not lie within the planning horizon

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DMRES -

• Message number: 820

• Message text: The date does not lie within the planning horizon

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/DMRES820 - The date does not lie within the planning horizon ?

  The SAP error message /SAPAPO/DMRES820 indicates that a date specified in a demand management or planning operation does not fall within the defined planning horizon. This error typically occurs in the context of SAP Advanced Planning and Optimization (APO) when trying to process data that is outside the acceptable range for planning activities.
  Cause:
  
  Planning Horizon Configuration: The planning horizon is defined in the system settings, and it specifies the time frame within which planning activities can occur. If a date falls outside this range, the error will be triggered.
  Incorrect Date Input: The date being processed (e.g., a demand date, production date, etc.) may have been incorrectly entered or calculated, leading to it being outside the planning horizon.
  Master Data Issues: There may be issues with the master data (e.g., product master, location master) that affect the planning horizon.
  Time Period Settings: The settings for the time periods in the planning book or the planning version may not align with the expected planning horizon.
  
  Solution:
  
  
  Check Planning Horizon Settings:
  
  Navigate to the configuration settings for the planning horizon in SAP APO. This can typically be found in the configuration settings for the specific planning area or planning book.
  Ensure that the planning horizon is set correctly to encompass the dates you are working with.
  
  
  
  Adjust Dates:
  
  Review the dates being processed in your demand management or planning activities. If they are outside the planning horizon, adjust them to fall within the defined range.
  
  
  
  Review Master Data:
  
  Check the relevant master data for the product or location to ensure that there are no discrepancies that could affect the planning horizon.
  
  
  
  Update Planning Book Settings:
  
  If you are using a planning book, ensure that the time periods and settings are correctly configured to match the planning horizon.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on configuring the planning horizon and resolving related issues.
  
  
  
  Testing:
  
  After making adjustments, test the planning process again to ensure that the error does not reoccur.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SAPAPO/SDP94 (for demand planning) or /SAPAPO/MC62 (for planning book configuration) to access relevant settings.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address known issues.
  User Forums: Consider visiting SAP community forums or user groups for shared experiences and solutions from other users who may have encountered the same error.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.