How To Fix CN777 - Object (network, activity, item) is invalid

CN777 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 777

• Message text: Object (network, activity, item) is invalid

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.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN777 - Object (network, activity, item) is invalid ?

  The SAP error message CN777 indicates that the specified object (network, activity, or item) is invalid. This error typically occurs in the context of Project System (PS) or Controlling (CO) modules when trying to access or manipulate a network, activity, or item that does not exist or is not correctly defined in the system.
  Causes of CN777 Error
  
  Non-Existent Object: The object you are trying to access (network, activity, or item) does not exist in the system.
  Incorrect Object Type: The object type you are trying to use may not match the expected type (e.g., trying to use an activity number where a network number is expected).
  Authorization Issues: The user may not have the necessary authorizations to access the specified object.
  Deleted or Inactive Objects: The object may have been deleted or marked as inactive in the system.
  Incorrect Input: There may be a typographical error in the object number or name being entered.
  
  Solutions to