How To Fix CN116 - Select relationship first

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 116

• Message text: Select relationship first

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN116 - Select relationship first ?

  The SAP error message CN116 ("Select relationship first") typically occurs in the context of project management or network planning within the SAP system, particularly when working with the Project System (PS) module. This error indicates that the system expects you to select a relationship before performing a certain action, such as assigning or modifying activities in a project.
  Cause:
  The error is usually triggered when:
  
  You attempt to perform an operation (like copying, deleting, or changing) on a network or activity without first selecting a relationship.
  The system requires a specific relationship (like finish-to-start, start-to-start, etc.) to be defined between activities before proceeding with the operation.
  
  Solution:
  To resolve the CN116 error, follow these steps:
  
  
  Select the Relationship: 
  
  Navigate to the relevant screen where you are managing your project activities or networks.
  Ensure that you have selected the appropriate relationship between the activities. This can usually be done by clicking on the relationship line or using the relationship management options in the interface.
  
  
  
  Check Activity Status: 
  
  Make sure that the activities you are trying to link or modify are in a status that allows for changes. If they are locked or in a completed state, you may need to unlock or adjust their status.
  
  
  
  Review Project Structure: 
  
  Ensure that the project structure is correctly set up and that all necessary activities and relationships are defined. You may need to create or adjust relationships as needed.
  
  
  
  Consult Documentation: 
  
  If you are unsure about the relationships required for your specific project, refer to SAP documentation or guidelines related to project management in SAP.
  
  
  
  User Permissions: 
  
  Ensure that you have the necessary permissions to modify relationships in the project. If not, contact your SAP administrator.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder) or CN22 (Change Network) where you might encounter this error.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Training and Support: If you are new to SAP PS, consider training sessions or consulting with experienced colleagues to better understand project relationships and management.
  
  By following these steps, you should be able to resolve the CN116 error and continue with your project management tasks in SAP.