How To Fix WRF_APC578 - Calculation is not possible

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 578

• Message text: Calculation is not possible

What causes this issue?

Calculation is not possible.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You can enter either the basic purchsing price with purchasing price
net/net or purchasing price net/net with sales price.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_APC578 - Calculation is not possible ?

  The SAP error message WRF_APC578: Calculation is not possible typically occurs in the context of Product Costing or Cost Object Controlling when the system is unable to perform a cost calculation for a production order, process order, or a similar cost object.
  
  Cause
  The error WRF_APC578 usually indicates that the system cannot perform the calculation because of one or more of the following reasons:
  
  
  Missing or Incomplete Master Data:
  
  The cost estimate cannot be calculated because required master data (such as routing, BOM, work center, activity types, or cost elements) is missing or incomplete.
  
  
  
  Incorrect or Missing Costing Variant:
  
  The costing variant assigned to the order or cost object is incorrect or incomplete.
  
  
  
  Missing or Incorrect Price Data:
  
  Prices for activities, materials, or overheads are missing or not maintained.
  
  
  
  Inconsistent or Missing Settlement Rules:
  
  The settlement rules for the order or cost object are missing or incorrectly maintained.
  
  
  
  System or Configuration Issues:
  
  Customizing settings related to costing or controlling are incomplete or inconsistent.
  
  
  
  Authorization Issues:
  
  The user performing the calculation does not have the necessary authorizations.
  
  
  
  
  Solution
  To resolve the WRF_APC578 error, follow these steps:
  
  
  Check Master Data:
  
  Verify that the BOM and routing for the product or order are complete and valid.
  Ensure that all components and operations have valid cost elements and activity types assigned.
  
  
  
  Verify Costing Variant:
  
  Check the costing variant assigned to the order or cost object.
  Make sure the costing variant is properly configured in transaction OKKN or relevant customizing.
  
  
  
  Maintain Prices:
  
  Ensure that prices for materials, activities, and overheads are maintained in the system.
  Use transactions like CK11N (Create Cost Estimate) or CKM3 (Material Price Analysis) to verify prices.
  
  
  
  Check Settlement Rules:
  
  Verify that settlement rules are maintained correctly for the order or cost object.
  Use transaction KO02 (Change Order) or KO03 (Display Order) to check settlement rules.
  
  
  
  Review Customizing Settings:
  
  Check controlling area settings, costing variants, and other relevant configuration in SPRO under Controlling ? Product Cost Controlling.
  
  
  
  Check Authorizations:
  
  Ensure the user has the necessary authorizations to perform cost calculations.
  
  
  
  Run Cost Estimate Manually:
  
  Try to run a manual cost estimate using CK11N or CK40N to identify if the problem is specific to the order or general.
  
  
  
  Check Logs and Dumps:
  
  Review system logs (SM21), short dumps (ST22), and application logs (SLG1) for more detailed error information.
  
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  CK11N – Create Cost Estimate
  CK40N – Costing Run
  KO02 / KO03 – Change / Display Production Order
  OKKN – Maintain Costing Variants
  CKM3 – Material Price Analysis
  ST22 – ABAP Runtime Errors
  SM21 – System Log
  SLG1 – Application Log
  
  
  
  SAP Notes:
  
  Check SAP Notes related to costing errors or WRF_APC578 for any known issues or patches.
  
  
  
  Documentation:
  
  SAP Help Portal sections on Product Cost Controlling and Cost Object Controlling.
  
  
  
  Common Scenarios:
  
  This error often appears during order settlement or cost estimate release.
  It may also occur if the system tries to calculate costs for a product with incomplete BOM or routing.
  
  
  
  
  If after these checks the problem persists, consider raising a support ticket with SAP, providing detailed logs and system information.
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Missing/incomplete master data, incorrect costing variant, missing prices, settlement issues
  
  
  Solution
  Verify and complete master data, maintain costing variant and prices, check settlement rules, review authorizations
  
  
  Related Info
  Use CK11N, KO02, OKKN, check logs (ST22, SM21), consult SAP Notes and documentation
  
  
  
  
  If you provide more context (e.g., transaction used, object type, system version), I can help with more specific guidance.