How To Fix CN248 - Object type: &1, external ID; &2, new ID: &3

CN248 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 248

• Message text: Object type: &1, external ID; &2, new ID: &3

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

CN248 - Details

• The SAP error message CN248 typically occurs in the context of project management or construction management within the SAP system, particularly when dealing with object types such as WBS elements, networks, or activities. The error message indicates that there is an issue with the external ID of an object when trying to create or modify it.
  
  Cause:
  The error message CN248 can be triggered by several factors, including:
  
  Invalid External ID: The external ID provided does not exist or is not valid for the specified object type.
  Duplicate IDs: There may be an attempt to create an object with an ID that already exists in the system.
  Authorization Issues: The user may not have the necessary permissions to create or modify the object with the specified external ID.
  
  Configuration Issues: There may be configuration settings in the project system that are not aligned with the operation being performed.
  
  
  Solution:
  To resolve the CN248 error, you can take the