How To Fix CP312 - Lot size range of sequence is not within lot size range of header

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 312

• Message text: Lot size range of sequence is not within lot size range of header

What causes this issue?

You are attempting to define a lot-size range for an alternative
sequence which is outside of the task list header lot-size range. A
lot-size range for which an alternative sequence is valid does not have
to be identical with that of the header. However, the lot-size range
cannot be totally outside of the lot-size range of the task list
header.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Define a lot-size range for the alternative sequence which is within
the lot-size range of the task list header. Change the lot-size range
in the header beforehand, if necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CP312 - Lot size range of sequence is not within lot size range of header ?

  The SAP error message CP312, which states "Lot size range of sequence is not within lot size range of header," typically occurs in the context of production planning and control, particularly when working with production orders or process orders in SAP. This error indicates that there is a mismatch between the lot size range defined for a specific sequence in a routing or recipe and the lot size range defined for the overall production order or header.
  Cause:
  
  
  Mismatch in Lot Size Ranges: The lot size range defined for the operation or sequence in the routing does not fall within the lot size range defined for the production order header. For example, if the header allows for a lot size of 100 to 500 units, but the sequence allows for a lot size of 600 to 800 units, this error will occur.
  
  
  Incorrect Configuration: The routing or recipe may have been incorrectly configured, leading to discrepancies in the lot size definitions.
  
  
  Changes in Master Data: Changes made to the material master, routing, or production order after the initial setup can lead to inconsistencies.
  
  
  Solution:
  
  
  Check Lot Size Ranges: Review the lot size ranges defined in both the production order header and the routing/recipe sequences. Ensure that the lot size range for each sequence falls within the overall lot size range of the production order.
  
  
  Adjust Routing/Recipe: If the sequence's lot size range is incorrect, modify it to ensure it aligns with the production order header's lot size range.
  
  
  Update Production Order: If the production order's lot size range needs to be adjusted, you can do so in the production order details.
  
  
  Review Master Data: Check the material master and routing configurations to ensure they are set up correctly and consistently.
  
  
  Consult Documentation: If necessary, refer to SAP documentation or consult with your SAP support team for guidance on how to adjust the configurations properly.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as CO01 (Create Production Order), CO02 (Change Production Order), or C202 (Change Routing) to access and modify the relevant data.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error.
  Testing: After making adjustments, test the changes by attempting to create or change the production order again to ensure the error has been resolved.
  
  By following these steps, you should be able to identify the cause of the CP312 error and implement the necessary changes to resolve it.