How To Fix WRF_APC844 - None of the active key figures of PL &1 identifies the assortment ratios

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_APC - Messages for Operational Assortment Planning and Control

• Message number: 844

• Message text: None of the active key figures of PL &1 identifies the assortment ratios

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• What is the cause and solution for SAP error message WRF_APC844 - None of the active key figures of PL &1 identifies the assortment ratios ?

  SAP Error Message:
  
  WRF_APC844 – None of the active key figures of PL &1 identifies the assortment ratios
  
  Cause
  This error occurs in SAP Advanced Planning and Optimization (APO), specifically in the Production Planning and Detailed Scheduling (PP/DS) or Demand Planning (DP) modules, when the system tries to determine assortment ratios for a product (or product location) but cannot find any active key figure in the planning layout (PL) that is defined as an assortment ratio.
  In other words:
  
  The planning layout (PL) used in the planning book does not contain any key figure that is marked or configured as an assortment ratio key figure. Assortment ratios are used to split or distribute demand or supply quantities across product variants or locations, and the system requires at least one key figure to be flagged for this purpose.
  
  When does it occur?
  
  During demand planning or supply planning runs where assortment ratios are needed.
  When the planning book or planning layout is missing the key figure that identifies assortment ratios.
  When the system tries to calculate or apply assortment ratios but cannot find the relevant key figure.
  
  
  Solution
  
  
  Check the Planning Layout (PL):  
  
  Go to the planning book and open the planning layout used in the process.
  Verify if there is a key figure defined and active that represents the assortment ratio.
  
  
  
  Define or Activate Assortment Ratio Key Figure:  
  
  If no key figure is defined for assortment ratios, create one or activate an existing key figure.
  The key figure should be of type "Assortment Ratio" or flagged accordingly in the planning layout.
  
  
  
  Assign the Key Figure in the Planning Book:  
  
  Ensure that the planning book uses the planning layout that contains the assortment ratio key figure.
  Check the key figure settings in the planning book and planning layout.
  
  
  
  Check Master Data and Customizing:  
  
  Verify that the product master data and location data are correctly maintained.
  Check if the assortment ratios are maintained or calculated based on the key figure.
  
  
  
  Transport and Consistency:  
  
  If changes are made in development or quality systems, ensure they are transported correctly to production.
  Check for consistency in key figure definitions across systems.
  
  
  
  
  Related Information
  
  
  Assortment Ratios:
  
  Used to distribute quantities (demand or supply) across product variants or locations. For example, if a product has multiple variants, the assortment ratio key figure defines the percentage split of demand among these variants.
  
  
  Planning Book and Data View:
  
  The planning book contains the planning layout (PL) which defines which key figures are visible and active during planning.
  
  
  Key Figures:
  
  In SAP APO, key figures are the data elements used for planning (e.g., demand, supply, stock, assortment ratios).
  
  
  Transaction Codes:  
  
  /SAPAPO/SDP94 – Planning Book maintenance  
  /SAPAPO/KEYFIG – Key figure maintenance  
  /SAPAPO/MC90 – Demand Planning Monitor
  
  
  
  SAP Notes and Documentation:
  
  Check SAP Notes related to WRF_APC844 for any patches or updates. Also, refer to SAP APO documentation on planning books, key figures, and assortment ratios.
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WRF_APC844: None of the active key figures of PL &1 identifies the assortment ratios
  
  
  Cause
  No active key figure in the planning layout is defined as an assortment ratio
  
  
  Solution
  Define or activate an assortment ratio key figure in the planning layout used
  
  
  Related Info
  Assortment ratios split demand/supply; key figures must be properly configured in APO
  
  
  
  
  If you need detailed steps on how to create or activate key figures or maintain planning layouts, please let me know!