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

CP438 - Overview

• 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.

CP438 - Details

• 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