How To Fix CK640 - Marked cost estimate cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: CK - Product Costing Messages

• Message number: 640

• Message text: Marked cost estimate cannot be changed

What causes this issue?

A marked cost estimate for this order item already exists in the
database; it may have been used to valuate sales order or project
inventory materials. That is why this cost estimate can only be
displayed.

System Response

The item is not costed again, the existing cost estimate is displayed.

How to fix this error?

Using the message type for the user-defined message CK635, you can
specify whether marked cost estimates for the sales order can be
overwritten.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CK640 - Marked cost estimate cannot be changed ?

  The SAP error message CK640, which states "Marked cost estimate cannot be changed," typically occurs in the context of cost estimating in SAP, particularly when dealing with cost estimates that have been marked for use in production or other processes. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Marked Cost Estimate: The cost estimate in question has been marked, meaning it has been finalized and is being used for various purposes (e.g., production, pricing).
  Status of the Cost Estimate: The cost estimate may be in a status that does not allow for changes. For example, if it has been released or is being used in a production order, it cannot be modified.
  Authorization Issues: The user may not have the necessary authorizations to change a marked cost estimate.
  System Settings: Certain system settings or configurations may prevent changes to marked cost estimates.
  
  Solutions:
  
  Unmark the Cost Estimate: If you need to make changes, you may need to unmark the cost estimate. This can typically be done through the transaction code CK24 (Change Cost Estimate) or CK40N (Cost Estimate with Quantity Structure) if the cost estimate is not locked by other processes.
  Check Status: Verify the status of the cost estimate. If it is marked for use in production or has been released, you may need to reverse or cancel any dependent documents (like production orders) before making changes.
  Authorization Check: Ensure that you have the necessary authorizations to modify cost estimates. If not, contact your SAP security administrator to obtain the required permissions.
  Consult Documentation: Review SAP documentation or help files related to cost estimating to understand the implications of marking and unmarking cost estimates.
  Use a New Cost Estimate: If changes are necessary and the existing cost estimate cannot be modified, consider creating a new cost estimate instead.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CK11N (Create Cost Estimate), CK24 (Change Cost Estimate), and CK40N (Cost Estimate with Quantity Structure).
  Cost Estimate Types: Understand the different types of cost estimates (e.g., standard cost estimates, planned cost estimates) and their implications on production and inventory valuation.
  SAP Notes: Check for any SAP Notes related to this error message for specific patches or updates that may address the issue.
  Training and Documentation: Consider training sessions or documentation on cost accounting and controlling in SAP to better understand the processes involved.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a functional consultant specializing in SAP Controlling (CO) for further assistance.