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

SAP Error Message - Details

• 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 you want to activate the ACL.
  
  
  
  Activate the Activity Control Layer:
  
  In the project details, look for the option to activate the Activity Control Layer. This is usually found in the project settings or under the "Control" tab.
  Activate the ACL by selecting the appropriate option (this may vary based on your SAP version).
  
  
  
  Save Changes:
  
  After activating the ACL, make sure to save your changes.
  
  
  
  Re-attempt the Assignment:
  
  Go back to the transaction where you were trying to assign the network and attempt the assignment again.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CJ20N: Project Builder
  CJ02: Change Project
  CJ01: Create Project
  CN21: Create Network
  
  
  
  Documentation:
  
  Refer to SAP Help documentation for detailed information on the Activity Control Layer and its configuration.
  Check your organization's internal documentation or guidelines for project management in SAP, as there may be specific procedures to follow.
  
  
  
  User Authorizations:
  
  Ensure that you have the necessary authorizations to make changes to project settings and activate the ACL.
  
  
  
  Consult with SAP Basis or Functional Team:
  
  If you are unable to activate the ACL or if the option is not available, consult with your SAP Basis or functional team for assistance, as there may be system settings or configurations that need to be addressed.
  
  
  
  By following these steps, you should be able to resolve the CNACL_MSG_CL024 error and successfully assign the network to the object in SAP.