How To Fix CN101 - You have not marked an assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 101

• Message text: You have not marked an assignment

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 CN101 - You have not marked an assignment ?

  The SAP error message CN101 ("You have not marked an assignment") typically occurs in the context of project management or controlling when you are trying to assign costs or resources to a project or internal order, but the system requires that you first mark the assignment before proceeding.
  Cause:
  
  Unmarked Assignment: The most common cause of this error is that the assignment of costs or resources to a project or internal order has not been marked or confirmed in the system.
  Missing Data: There may be missing or incomplete data in the assignment that needs to be addressed before the system allows you to proceed.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to mark the assignment.
  
  Solution:
  
  
  Mark the Assignment: 
  
  Go to the relevant transaction (e.g., CJ20N for project management).
  Ensure that you have selected the correct project or internal order.
  Look for an option to mark or confirm the assignment. This may involve checking a box or clicking a button to indicate that the assignment is complete.
  
  
  
  Check Data Completeness: 
  
  Review the data you are trying to assign. Ensure that all required fields are filled out correctly.
  Make sure that the cost elements, activity types, or resources you are trying to assign are valid and available.
  
  
  
  Review Authorizations: 
  
  If you suspect that authorization might be an issue, check with your SAP security team to ensure that you have the necessary permissions to perform the assignment.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or help files for specific guidance on the transaction you are using. This can provide insights into what might be missing or required.
  
  
  
  Contact Support: 
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CJI3 (Project Actual Line Items), and others related to project management and controlling.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the CN101 error and successfully mark your assignment in SAP.