How To Fix KO223 - Select one phase only

SAP Error Message - Details

• Message type: E = Error

• Message class: KO - Master data for CO orders

• Message number: 223

• Message text: Select one phase only

What causes this issue?

You marked either none or more than one phase. A status, however must
be assigned to only one phase.

System Response

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?

Please assign the status to only one phase.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KO223 - Select one phase only ?

  The SAP error message "KO223 Select one phase only" typically occurs in the context of production order processing, particularly when dealing with phases in a production order or when trying to execute a transaction that involves multiple phases. This error indicates that the system expects the user to select only one phase for the operation being performed, but multiple phases have been selected instead.
  Cause:
  
  Multiple Phase Selection: The most common cause of this error is that the user has selected more than one phase in a transaction where only a single phase is allowed.
  Configuration Issues: There may be configuration settings in the production order or routing that are not aligned with the expected behavior of the system.
  User Error: The user may not be aware of the requirement to select only one phase and inadvertently selects multiple phases.
  
  Solution:
  
  Select a Single Phase: Review the selection criteria and ensure that only one phase is selected when executing the transaction. This may involve deselecting other phases in the user interface.
  Check Transaction Guidelines: Refer to the documentation or guidelines for the specific transaction you are using to understand the requirements for phase selection.
  Review Configuration: If the issue persists, it may be necessary to review the configuration settings related to production orders and phases in the SAP system. This may involve consulting with a system administrator or SAP consultant.
  User Training: If this error is common among users, consider providing training or documentation to help users understand how to properly select phases in the system.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to production orders, such as CO01 (Create Production Order), CO02 (Change Production Order), or COHV (Mass Processing of Production Orders).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context or solutions.
  Documentation: Review SAP Help documentation for production order processing to understand the role of phases and how they should be managed.
  
  If the problem continues after following these steps, it may be beneficial to reach out to SAP support or consult with an SAP expert for further assistance.