How To Fix UPO_UDM_MSG042 - &1 is not possible on a non allocated network

SAP Error Message - Details

• Message type: E = Error

• Message class: UPO_UDM_MSG - UDM Messages

• Message number: 042

• Message text: &1 is not possible on a non allocated network

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message UPO_UDM_MSG042 - &1 is not possible on a non allocated network ?

  The SAP error message UPO_UDM_MSG042 typically indicates that an operation you are trying to perform is not possible because it involves a non-allocated network. This error is often encountered in the context of SAP's Project System (PS) or other modules that deal with network planning and management.
  Cause:
  The error occurs when you attempt to perform an action (such as scheduling, releasing, or confirming activities) on a network that has not been allocated. In SAP, a network must be allocated to a project or order before certain operations can be executed. If the network is not allocated, the system will prevent you from proceeding with the operation to maintain data integrity and ensure that all necessary prerequisites are met.
  Solution:
  To resolve this error, you need to allocate the network before performing the desired operation. Here are the steps you can take:
  
  
  Check Network Status: Verify the status of the network in question. You can do this by navigating to the relevant transaction (e.g., CN21 for creating networks, CN22 for changing networks) and checking the allocation status.
  
  
  Allocate the Network:
  
  If the network is not allocated, you can allocate it by using the appropriate transaction (e.g., CN22).
  Ensure that all necessary prerequisites for allocation are met, such as having the correct project or order assigned.
  
  
  
  Review Dependencies: Make sure that all dependencies and relationships between activities in the network are correctly defined. Sometimes, missing dependencies can prevent allocation.
  
  
  Check Authorizations: Ensure that you have the necessary authorizations to allocate networks and perform the desired operations.
  
  
  Consult Documentation: If you are unsure about the allocation process or the specific requirements for your project, refer to the SAP documentation or consult with your SAP support team.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CN21 (Create Network), CN22 (Change Network), and CN24 (Display Network).
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address specific issues.
  User Roles: Ensure that your user role has the necessary permissions to allocate networks and perform related operations.
  
  If the problem persists after following these steps, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.