How To Fix CKBA015 - Lot size could not be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: CKBA - Message Pool for Development Class CKBA

• Message number: 015

• Message text: Lot size could not be determined

What causes this issue?

No lot size could be determined from the procurement quantity.
You wanted to create a procurement alternative for a joint production
process.

System Response

The lot size of the process material is determined from the procurement
quantity entered by the user via the assignment in the BOM. If this is
not possible, an error occurs.

How to fix this error?

Check the co-product and process material or your assignment in the
BOM.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CKBA015 - Lot size could not be determined ?

  The SAP error message CKBA015, which states "Lot size could not be determined," typically occurs in the context of material management and production planning when the system is unable to calculate the appropriate lot size for a production order or a purchase requisition. This can happen for various reasons, and understanding the cause is essential for finding a solution.
  Causes of CKBA015
  
  
  Missing Master Data: The material master data may not be properly maintained. This includes missing lot size information in the material master record.
  
  
  Lot Size Configuration: The lot size settings in the material master or in the production version may not be configured correctly. This includes settings for minimum and maximum lot sizes.
  
  
  Planning Parameters: The planning parameters in the material master (like MRP type, lot size procedure, etc.) may not be set correctly.
  
  
  Production Version: If the production version is not defined or is not active for the material, the system may not be able to determine the lot size.
  
  
  MRP Settings: If the material is not included in the MRP run or if the MRP settings are incorrect, it may lead to this error.
  
  
  Special Procurement Types: If the material has special procurement types (like external procurement), the system may not be able to determine the lot size.
  
  
  Solutions to CKBA015
  
  
  Check Material Master Data:
  
  Go to transaction MM03 and check the material master data for the relevant material.
  Ensure that the lot size information is correctly maintained in the MRP 1 view.
  
  
  
  Review Lot Size Settings:
  
  In the material master, check the lot size settings (e.g., fixed lot size, lot-for-lot, etc.) and ensure they are appropriate for your requirements.
  
  
  
  Verify Production Version:
  
  Check if a production version exists for the material using transaction C202 or C223.
  If not, create or activate a production version.
  
  
  
  Check MRP Settings:
  
  Ensure that the material is included in the MRP run and that the MRP type is set correctly.
  You can check this in the MRP 1 view of the material master.
  
  
  
  Review Special Procurement Types:
  
  If applicable, check the procurement type in the material master and ensure that it is set correctly for your business process.
  
  
  
  Run MRP:
  
  If changes have been made to the material master or production version, run the MRP again to see if the lot size can now be determined.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  MM03: Display Material Master
  C202: Display Production Version
  C223: Change Production Version
  MD02: MRP Run
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on material master data and lot size configuration.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  
  By following these steps, you should be able to identify the cause of the CKBA015 error and implement the necessary solutions to resolve it.