How To Fix J2045 - Costing lot size is zero. Please check the cost estimate

SAP Error Message - Details

• Message type: E = Error

• Message class: J2 - Message Class for Development Class JBT

• Message number: 045

• Message text: Costing lot size is zero. Please check the cost estimate

What causes this issue?

For transaction '&V1&', operating concern '&V3&' was found for company
code '&V3&'. When the costing run was initiated, however, operating
concern '&V4&' was entered.

System Response

The transaction can not be costed in the current run.

How to fix this error?

Please start the costing run for this transaction again, and this time
enter operating concern '&V3&'.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message J2045 - Costing lot size is zero. Please check the cost estimate ?

  The SAP error message J2045, which states "Costing lot size is zero. Please check the cost estimate," typically occurs during the cost estimation process in SAP, particularly when dealing with materials or production orders. This error indicates that the system has encountered a situation where the lot size for costing is set to zero, which is not valid for cost estimation.
  Causes:
  
  Lot Size Configuration: The lot size for the material or production order may not be defined correctly in the material master or the production order settings.
  Missing Data: Required data for the cost estimate, such as quantity or lot size, may be missing or incorrectly entered.
  Costing Variant Issues: The costing variant used may not be configured properly, leading to a situation where the lot size is calculated as zero.
  Material Master Settings: The material master record may not have the necessary costing views or data filled in.
  Production Version: If a production version is not assigned or is incorrect, it may lead to issues in determining the lot size.
  
  Solutions:
  
  
  Check Material Master:
  
  Go to the material master (transaction code MM03) and check the relevant views (especially the Costing view) to ensure that the lot size is defined correctly.
  Ensure that the material has a valid base quantity and that the costing lot size is not set to zero.
  
  
  
  Review Costing Variant:
  
  Check the costing variant settings (transaction code OKKN) to ensure that it is configured correctly and that it allows for valid lot sizes.
  
  
  
  Verify Production Order Settings:
  
  If the error occurs during the creation of a production order, check the order type and ensure that the lot size is defined in the order type settings.
  
  
  
  Check Cost Estimate:
  
  If you are running a cost estimate, ensure that all necessary parameters are filled in correctly, including the quantity and lot size.
  
  
  
  Adjust Lot Size:
  
  If the lot size is indeed zero, you may need to adjust it to a valid number based on your business requirements.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific configurations related to your version of SAP.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  MM03 (Display Material)
  CK11N (Create Cost Estimate)
  CK40N (Mass Cost Estimate)
  OKKN (Costing Variants)
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  User Roles: Ensure that the user has the necessary authorizations to view and modify the material master and costing settings.
  
  
  By following these steps, you should be able to identify the cause of the error and implement the necessary solutions to resolve it. If the issue persists, consider reaching out to your SAP support team for further assistance.