How To Fix CP437 - Wrong lot size range in task list header

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 437

• Message text: Wrong lot size range in task list header

What causes this issue?

A reference operation set is referenced in routing &V1& &V2&, operation
&V4& of sequence &V3&. The lot size range of the routing exceeds the
lot size range of the referenced operation set.

How to fix this error?

Check routing &V1& &V2& and, if necessary, correct the lot size range
of the header.
Make sure that the lot size range of the referenced operation set
includes the lot size range of the routing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CP437 - Wrong lot size range in task list header ?

  The SAP error message "CP437 Wrong lot size range in task list header" typically occurs in the context of production planning and control, particularly when dealing with task lists (such as routing or production versions) in SAP. This error indicates that there is an issue with the lot size range defined in the task list header, which does not match the expected values or constraints.
  Cause:
  
  Incorrect Lot Size Configuration: The lot size range defined in the task list header may not be set correctly. This could be due to incorrect values entered during the creation or modification of the task list.
  Mismatch with Material Master: The lot size range in the task list may not align with the lot size settings in the material master record.
  Inconsistent Data: There may be inconsistencies between the task list and the production order or other related documents.
  Missing or Incorrect Parameters: Required parameters for the lot size range may be missing or incorrectly configured in the system.
  
  Solution:
  
  Check Task List Header: Review the task list header to ensure that the lot size range is correctly defined. You can do this by navigating to the task list in the SAP GUI and checking the relevant fields.
  Verify Material Master Data: Ensure that the lot size settings in the material master record are consistent with those in the task list. You can check this by using transaction code MM03 to view the material master data.
  Adjust Lot Size Range: If the lot size range is incorrect, adjust it to match the required values. This can be done in the task list maintenance screen.
  Check for Inconsistencies: Look for any inconsistencies between the task list and related documents (like production orders) and resolve them.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on configuring lot sizes and task lists.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes such as CA01 (Create Routing), CA02 (Change Routing), or CA03 (Display Routing) to manage task lists.
  Lot Size Types: Familiarize yourself with different lot size types (e.g., fixed lot size, variable lot size) and their implications on production planning.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error message.
  
  By following these steps, you should be able to identify and resolve the issue related to the "CP437 Wrong lot size range in task list header" error message in SAP.