How To Fix CNACL_MSG_CL024 - You must activate ACL to assign network & to this object

CNACL_MSG_CL024 - Overview

• Message type: E = Error

• Message class: CNACL_MSG_CL - Message class for ACL FOR PS

• Message number: 024

• Message text: You must activate ACL to assign network & to this object

What causes this issue?

A network or an activity for which the Access Control List (ACL) is not
activated cannot be assigned to an object which is ACL-enabled.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNACL_MSG_CL024 - You must activate ACL to assign network & to this object ?

  The SAP error message CNACL_MSG_CL024 indicates that you need to activate the Activity Control Layer (ACL) in order to assign a network to a specific object. This error typically arises in the context of project management or network planning within SAP, particularly when dealing with project structures or networks in the Project System (PS) module.
  
  Cause:
  The error occurs because the Activity Control Layer (ACL) is not activated for the project or network you are trying to work with. The ACL is a feature that allows for more detailed control and management of activities and networks in SAP, and it must be enabled before you can assign networks to certain objects.
  
  Solution:
  To resolve this error, you need to activate the ACL for the relevant project or network. Here are the steps to do this:
  
  
  Access the Project Definition:
  
  Go to the transaction code CJ20N (Project Builder) or CJ02 (Change Project).
  Enter the project definition for which