How To Fix CK728 - Lot size entered ignored by mixed cost estimate

SAP Error Message - Details

• Message type: E = Error

• Message class: CK - Product Costing Messages

• Message number: 728

• Message text: Lot size entered ignored by mixed cost estimate

What causes this issue?

You have entered a lot size in the request screen.

System Response

The system is aware that a mixed cost estimate is to created for
material &V1& in plant &V2&. In mixed costing however, the lot size is
calculated by the system.
The lot size which you entered is ignored when costing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CK728 - Lot size entered ignored by mixed cost estimate ?

  The SAP error message CK728 ("Lot size entered ignored by mixed cost estimate") typically occurs during the cost estimate process in SAP, particularly when dealing with mixed cost estimates. This error indicates that the lot size specified for the cost estimate is not being considered due to the nature of the mixed cost estimate.
  Cause:
  
  Mixed Cost Estimate: The error arises because mixed cost estimates do not utilize the lot size entered. Instead, they calculate costs based on the components and their respective quantities, regardless of the lot size.
  Costing Variant Settings: The settings in the costing variant may not allow for the consideration of lot sizes in mixed cost estimates.
  Material Master Data: The material master data may not be set up correctly, leading to discrepancies in how lot sizes are handled.
  
  Solution:
  
  Review Costing Variant: Check the settings of the costing variant being used. Ensure that it is configured correctly for mixed cost estimates and that it aligns with your costing requirements.
  Adjust Lot Size: If the lot size is not relevant for the mixed cost estimate, you may need to adjust your approach to costing. Consider whether you need to use a different costing method that takes lot size into account.
  Material Master Configuration: Verify the material master data for the relevant materials. Ensure that the settings related to costing and lot sizes are correctly configured.
  Use Standard Costing: If lot size is critical for your costing process, consider using standard costing instead of mixed costing, as standard costing may allow for lot size considerations.
  Consult Documentation: Refer to SAP documentation or help resources for more detailed information on mixed cost estimates and how they handle lot sizes.
  
  Related Information:
  
  Costing Types: Understand the different types of costing methods available in SAP (e.g., standard costing, moving average costing, mixed costing) and their implications on lot sizes.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on mixed cost estimates.
  Training and Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By addressing the above points, you should be able to resolve the CK728 error and ensure that your cost estimates are processed correctly.