How To Fix KP551 - You must enter only one object to be planned

KP551 - Overview

• Message type: E = Error

• Message class: KP - CO-OM Planning

• Message number: 551

• Message text: You must enter only one object to be planned

What causes this issue?

When you called up the plan data interface, the system transferred more
than one object to one row (for example, a cost center and an order).
As statistical auxiliary postings are not possible in planning, as
opposed to actual postings, you may only transfer one object.

System Response

The corresponding record is not updated.

How to fix this error?

Change the call up for the plan data interface so that only one object
is transferred in each record.

Error message extract from SAP system. Copyright SAP SE.

KP551 - Details

• The SAP error message KP551 ("You must enter only one object to be planned") typically occurs in the context of planning activities within the SAP system, particularly when using transaction codes related to cost center planning, internal orders, or other planning-related transactions.
  
  Cause:
  This error message is triggered when the user attempts to plan multiple objects (such as cost centers, internal orders, etc.) at the same time in a context where only a single object is allowed. The planning function expects a single object to be specified for the operation being performed, and if multiple objects are provided, the system cannot process the request.
  
  Solution:
  To resolve this error, you should ensure that you are only entering one planning object at a time. Here are the steps you can take:
  
  
  Check Input Fields: Review the input fields in the planning transaction you are using. Make sure that you are only entering one object (e.g., one