How To Fix CN649 - Delivery infos can only be maintained for header-assigned networks here.

CN649 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 649

• Message text: Delivery infos can only be maintained for header-assigned networks here.

What causes this issue?

No delivery information can be maintained in the header of
activity-assigned networks, since it can only be transfered to the
activities and components in header-assigned networks.

Error message extract from SAP system. Copyright SAP SE.

CN649 - Details

• The SAP error message CN649 ("Delivery infos can only be maintained for header-assigned networks here") typically occurs in the context of project management and network planning within SAP. This error indicates that you are trying to maintain delivery information for a network activity that is not properly assigned to a project header or is not in the correct context for maintaining delivery information.
  
  Cause:
  
  Network Assignment: The network activity you are trying to maintain delivery information for is not assigned to a project header. In SAP, delivery information can only be maintained for networks that are linked to a project header.
  Incorrect Transaction: You may be using a transaction or screen that does not support maintaining delivery information for the type of network you are working with.
  Network Type: The network type may not allow for delivery information to be maintained, depending on the configuration and settings in your SAP system.
  
  
  Solution:
  
  Check Network Assignment: Ensure