How To Fix PK293 - Last kanban signal cannot be reversed

SAP Error Message - Details

• Message type: E = Error

• Message class: PK - Production - KANBAN

• Message number: 293

• Message text: Last kanban signal cannot be reversed

What causes this issue?

You can only reverse a kanban signal if the system still knows the
previous status. In certain cases, this is not the case. For example:
if a reversal was carried out for the previous kanban. (It is always
only possible to reverse the last status change.)
if the previous kanban was processed in the kanban correction.

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?

Analyze the actions to be carried out in the reversal (status change,
reversal of a goods movement, deletion of a replenishment element) and
carry out these actions manually.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PK293 - Last kanban signal cannot be reversed ?

  The SAP error message PK293, "Last kanban signal cannot be reversed," typically occurs in the context of the Kanban process within SAP's Production Planning (PP) module. This error indicates that you are trying to reverse the last Kanban signal for a particular Kanban container, which is not allowed because it would disrupt the integrity of the Kanban process.
  Cause:
  
  Last Signal Reversal: The error arises when an attempt is made to reverse the last Kanban signal (e.g., a signal that indicates that a container has been emptied or filled) for a Kanban container. The system does not allow this because it would create inconsistencies in the Kanban flow.
  Kanban Status: The Kanban container may already be in a status that does not permit reversal, such as being in a completed state.
  Configuration Issues: There may be configuration settings in the Kanban process that restrict the reversal of signals.
  
  Solution:
  
  Check Kanban Status: Verify the current status of the Kanban container. If it is the last signal, you cannot reverse it. You may need to create a new Kanban signal instead.
  Create New Signal: If you need to adjust inventory levels, consider creating a new Kanban signal rather than reversing the last one.
  Review Configuration: Check the configuration settings for the Kanban process in your SAP system. Ensure that the settings align with your business processes and that they allow for the necessary flexibility.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on managing Kanban signals and understanding the implications of reversing signals.
  User Authorization: Ensure that you have the necessary authorizations to perform actions related to Kanban signals. Sometimes, restrictions may be in place based on user roles.
  
  Related Information:
  
  Kanban Process: Understand the Kanban process in SAP, including how signals are generated and managed. Familiarize yourself with the lifecycle of a Kanban container.
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional insights into managing Kanban signals.
  Training and Support: If you are frequently encountering this error, consider additional training on the Kanban process in SAP or consult with your SAP support team for tailored assistance.
  
  By following these steps, you should be able to address the PK293 error and manage your Kanban signals effectively.