How To Fix CN724 - An MRP-relevant reservation exists for & &

CN724 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 724

• Message text: An MRP-relevant reservation exists for & &

What causes this issue?

You are attempting to change the allocation of a component to a WBS
element.

System Response

Note that a planned order or production order may have already been
generated in material requirements planning.
If only a planned order has been generated, you just have to carry out
a new planning run to adjust the requirements accordingly.
If a production order exists, the system will not delete it. Therefore,
you must process it manually.

Error message extract from SAP system. Copyright SAP SE.

CN724 - Details

• The SAP error message CN724 indicates that there is an MRP-relevant reservation for a specific material and plant combination. This typically occurs in the context of production planning and material requirements planning (MRP) when you are trying to perform an operation that conflicts with existing reservations.
  
  Cause:
  The error message CN724 is triggered when:
  
  You attempt to delete or change a reservation that is linked to an MRP process.
  There is an existing reservation for a material that is relevant for MRP, which prevents certain actions from being performed on that material.
  The reservation may be for a production order, maintenance order, or any other MRP-related document.
  
  
  Solution:
  To resolve the CN724 error, you can take the following steps:
  
  
  Check Existing Reservations:
  
  Use transaction code MB23 to display the existing reservations for the material in question. This will help you identify the reservation that is causing the conflict.
  
  
  
  Analyze the Reservation:
  
  Determine if the reservation is still needed. If it is