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

CK851 - Overview

• 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.

CK851 - Details

• 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