How To Fix CK749 - Mixing ratio ignored for fixed-price co-product &

SAP Error Message - Details

• Message type: E = Error

• Message class: CK - Product Costing Messages

• Message number: 749

• Message text: Mixing ratio ignored for fixed-price co-product &

What causes this issue?

In apportionment structure &V3& for material &V4, an equivalence number
was assigned to co-product &V1&. However, co-product &V1& in plant &V2&
is a fixed-price co-product.

System Response

The costs for this co-product cannot be apportioned in the process
costed.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CK749 - Mixing ratio ignored for fixed-price co-product & ?

  The SAP error message CK749, which states "Mixing ratio ignored for fixed-price co-product," typically occurs in the context of product costing in SAP, particularly when dealing with co-products and by-products in a production process. This error indicates that the system is unable to apply a mixing ratio for a fixed-price co-product due to the way the co-product is defined or the settings in the system.
  Cause:
  
  Fixed-Price Co-Product: The error arises when a co-product is defined with a fixed price. In such cases, the system does not consider the mixing ratio because the cost is predetermined and does not vary based on the input quantities.
  Costing Variant Settings: The settings in the costing variant may not allow for the application of mixing ratios for fixed-price co-products.
  Master Data Configuration: The configuration of the material master data for the co-product may not be set up correctly, leading to this error.
  
  Solution:
  
  Review Co-Product Settings: Check the configuration of the co-product in the material master. Ensure that it is correctly defined as a fixed-price co-product and that the necessary parameters are set.
  Adjust Costing Variant: If applicable, review the costing variant settings to ensure that they allow for the use of mixing ratios. You may need to create or modify a costing variant that supports the desired functionality.
  Use Standard Pricing: If the mixing ratio is essential for your costing process, consider using standard pricing instead of fixed pricing for the co-product. This will allow the system to apply the mixing ratio as intended.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling co-products and by-products in your version of SAP.
  Testing: After making changes, perform a test run to ensure that the error no longer occurs and that the costing behaves as expected.
  
  Related Information:
  
  Co-Products and By-Products: In SAP, co-products are products that are produced simultaneously in a manufacturing process, and they share the costs of production. By-products are secondary products that are produced in smaller quantities.
  Costing in SAP: Understanding how costing works in SAP, including the different types of pricing (standard, moving average, fixed), is crucial for effective product costing.
  SAP Notes and Support: If the issue persists, consider checking SAP Notes for any known issues or patches related to this error message. You can also reach out to SAP support for assistance.
  
  By addressing the configuration and settings related to co-products and their pricing, you should be able to resolve the CK749 error and ensure accurate product costing in your SAP system.