How To Fix CN281 - Missing material for network &

CN281 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 281

• Message text: Missing material for network &

What causes this issue?

During the check the system has determined that material components
will not be available on the required date.

How to fix this error?

To determine which material components are not available, call
up the error log using the menu options <LB>Extras -> Logs</>.

Error message extract from SAP system. Copyright SAP SE.

CN281 - Details

• The SAP error message CN281 ("Missing material for network &") typically occurs in the context of project management and network planning within the SAP system, particularly in the Project System (PS) module. This error indicates that a required material is not assigned to a network activity, which is essential for the execution of that activity.
  
  Cause:
  
  Missing Material Assignment: The most common cause is that the network activity does not have a material assigned to it, which is necessary for the activity to be executed.
  Incorrect Configuration: There may be configuration issues in the project or network settings that prevent the assignment of materials.
  Material Master Data Issues: The material may not exist in the system, or it may not be properly set up in the material master.
  Network Activity Status: The status of the network activity may not allow for material assignment (e.g., if the activity is already completed or closed).
  
  
  Solution:
  
  
  Assign Material: 
  
  Go to