How To Fix CP438 - Lot-size range of task list not in range of reference operation set

SAP Error Message - Details

• Message type: E = Error

• Message class: CP - Task list messages: Core data

• Message number: 438

• Message text: Lot-size range of task list not in range of reference operation set

What causes this issue?

You referenced an operation set in the sequence. However, the lot size
range of the routing header exceeds the lot size range of the reference
operation set for &V1&.

How to fix this error?

Check the routing, and correct the lot size range of the header, if
necessary.
Make sure that the lot size range of the referenced operation set
includes the lot size range of the operation set to be referenced.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CP438 - Lot-size range of task list not in range of reference operation set ?

  The SAP error message CP438, which states "Lot-size range of task list not in range of reference operation set," typically occurs in the context of production planning and control, particularly when working with task lists (such as routing or production versions) in SAP.
  Cause:
  This error generally arises due to a mismatch between the lot size defined in the task list and the lot size range specified in the reference operation set (ROS). The reference operation set defines the parameters for production operations, including the allowable lot sizes for production. If the lot size defined in the task list falls outside the range specified in the reference operation set, SAP will trigger this error.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Task List:
  
  Go to the task list (routing) in question and verify the lot size defined there. Ensure that it is within the acceptable range.
  
  
  
  Review the Reference Operation Set:
  
  Access the reference operation set associated with the task list. You can do this through transaction code COR1 or COR2 (for creating or changing reference operation sets).
  Check the lot size range defined in the reference operation set. Make sure that it includes the lot size specified in your task list.
  
  
  
  Adjust Lot Sizes:
  
  If the lot size in the task list is incorrect, you may need to adjust it to fit within the range defined in the reference operation set.
  Alternatively, if the reference operation set needs to accommodate a wider range of lot sizes, you can modify it to include the required lot size.
  
  
  
  Recheck Production Version:
  
  If you are using a production version, ensure that the production version is correctly linked to the task list and that the lot sizes are consistent.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for additional context on task lists and reference operation sets, as well as best practices for defining lot sizes.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  C202 - Change Task List
  C203 - Display Task List
  COR1 - Create Reference Operation Set
  COR2 - Change Reference Operation Set
  COR3 - Display Reference Operation Set
  
  
  
  SAP Notes:
  
  Check SAP Notes for any known issues or patches related to this error message.
  
  
  
  Configuration Settings:
  
  Review the configuration settings in the Production Planning (PP) module to ensure that they align with your business processes and requirements.
  
  
  
  By following these steps, you should be able to identify the cause of the CP438 error and implement the necessary changes to resolve it.