How To Fix CN778 - Enter network, activity and item

CN778 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 778

• Message text: Enter network, activity and item

What causes this issue?

To be able to assign a document to a material component, the system
requires the network and activity number, and the item from the
material component.

System Response

The document cannot be assigned.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN778 - Enter network, activity and item ?

  The SAP error message CN778 ("Enter network, activity and item") typically occurs in the context of project management and is related to the assignment of costs or resources to a specific network activity in a project. This error indicates that the system requires you to specify a network, activity, and item before proceeding with the action you are trying to perform.
  
  Cause:
  
  Missing Information: The most common cause of this error is that the user has not provided the necessary details (network, activity, and item) in the transaction or screen they are working on.
  Incorrect Transaction: The transaction being executed may not be appropriate for the current context, leading to the requirement for additional information.
  
  Configuration Issues: There may be configuration settings in the project system that require certain fields to be filled out before proceeding.
  
  
  Solution:
  
  
  Enter Required Information: 
  
  Navigate to the relevant screen where the error occurred.
  Ensure that you have entered the network number,