How To Fix CK851 - Costs cannot be allocated to the co-products

SAP Error Message - Details

• Message type: E = Error

• Message class: CK - Product Costing Messages

• Message number: 851

• Message text: Costs cannot be allocated to the co-products

What causes this issue?

The costs could not be allocated to the co-products. It may be that the
co-products are not indicated as being relevant to costing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CK851 - Costs cannot be allocated to the co-products ?

  The SAP error message CK851, which states "Costs cannot be allocated to the co-products," typically occurs in the context of product costing, particularly when dealing with co-products in a production process. Co-products are products that are produced simultaneously from the same process and share costs.
  Causes of CK851 Error
  
  Incorrect Configuration: The configuration for co-products in the material master or the costing variant may not be set up correctly.
  Missing Allocation Structure: The allocation structure for the co-products may not be defined or may be incomplete.
  Costing Variant Issues: The costing variant used may not support co-product allocation.
  Missing Master Data: Required master data for the co-products may be missing or incorrectly maintained.
  Costing Run Issues: The costing run may not have been executed properly, or there may be issues with the costing version.
  
  Solutions to CK851 Error
  
  
  Check Material Master Data:
  
  Ensure that the material master records for the co-products are correctly set up, including the relevant views (e.g., costing view).
  Verify that the co-products are defined in the same production process.
  
  
  
  Review Costing Variant:
  
  Check the costing variant settings to ensure that it allows for co-product allocation.
  Make sure that the costing variant is correctly assigned to the relevant costing run.
  
  
  
  Define Allocation Structure:
  
  Ensure that the allocation structure for co-products is defined in the system.
  You can do this in the configuration settings under Product Costing.
  
  
  
  Run Costing Again:
  
  If the costing run was not executed properly, try running it again after making the necessary adjustments.
  
  
  
  Check for Missing Data:
  
  Ensure that all necessary master data (e.g., BOMs, routing) is complete and correctly maintained for the co-products.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Related Information
  
  Transaction Codes: You may need to use transaction codes like CK11N (Create Cost Estimate with Quantity Structure) or CK40N (Costing Run) to review and adjust costing data.
  Documentation: Refer to SAP documentation on product costing and co-products for detailed guidance on configuration and troubleshooting.
  SAP Community: Engaging with the SAP Community or forums can provide insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the CK851 error and implement the necessary solutions to resolve it.