How To Fix CN428 - You must at least enter a usage or description

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 428

• Message text: You must at least enter a usage or description

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CN428 - You must at least enter a usage or description ?

  The SAP error message CN428 ("You must at least enter a usage or description") typically occurs in the context of creating or modifying a project or network activity in SAP Project System (PS). This error indicates that the system requires either a usage or a description to be entered for the project or activity you are trying to create or modify.
  Cause:
  
  Missing Fields: The error is triggered when both the "Usage" and "Description" fields are left blank. SAP requires at least one of these fields to be filled in to proceed.
  Configuration Settings: In some cases, the system configuration may enforce stricter rules regarding mandatory fields for project definitions or activities.
  
  Solution:
  To resolve the CN428 error, you should:
  
  Enter a Usage: If applicable, provide a usage code that describes the purpose of the project or activity.
  Enter a Description: Alternatively, or in addition, fill in the description field with a meaningful text that outlines the project or activity.
  Check Field Requirements: Review the project or activity type settings in the configuration to ensure that the required fields are correctly set up.
  
  Related Information:
  
  Transaction Codes: This error may occur in transactions such as CJ20N (Project Builder), CJ01 (Create Work Breakdown Structure), or CN21 (Create Network).
  Field Definitions: Familiarize yourself with the definitions of "Usage" and "Description" in the context of your specific project or activity type.
  SAP Notes: Check SAP Notes or the SAP Help Portal for any updates or specific notes related to this error message.
  User Authorizations: Ensure that you have the necessary authorizations to create or modify projects and that your user profile is correctly set up.
  
  By ensuring that at least one of the required fields is filled out, you should be able to resolve the CN428 error and proceed with your project or activity creation.