How To Fix UPO_UDM_MSG028 - &1 &2 does not exist for network &3

SAP Error Message - Details

• Message type: E = Error

• Message class: UPO_UDM_MSG - UDM Messages

• Message number: 028

• Message text: &1 &2 does not exist for network &3

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_MSG028 - &1 &2 does not exist for network &3 ?

  The SAP error message UPO_UDM_MSG028 typically indicates that a specific object (like a network or activity) does not exist in the system. This error is often encountered in the context of project management or network planning within SAP, particularly when dealing with networks in the Project System (PS) module.
  Cause:
  The error message UPO_UDM_MSG028 can occur due to several reasons:
  
  Non-existent Network: The network specified in the error message does not exist in the system. This could be due to a typo in the network number or the network being deleted or not created yet.
  Authorization Issues: The user may not have the necessary authorizations to view or access the specified network.
  Data Consistency Issues: There may be inconsistencies in the database or issues with the data being referenced.
  Incorrect Configuration: The configuration settings for the project or network may not be set up correctly.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Verify Network Existence:
  
  Check if the network number mentioned in the error message actually exists in the system. You can do this by navigating to the relevant transaction (e.g., CN21 for creating networks or CN22 for displaying networks) and entering the network number.
  
  
  
  Check for Typos:
  
  Ensure that there are no typographical errors in the network number you are trying to access.
  
  
  
  Authorization Check:
  
  Verify that the user has the necessary authorizations to access the network. You may need to consult with your SAP security team to ensure the user has the correct roles assigned.
  
  
  
  Data Consistency:
  
  If the network should exist but is not found, check for any data consistency issues. You may need to run consistency checks or consult with your SAP Basis team.
  
  
  
  Configuration Review:
  
  Review the configuration settings related to the Project System and networks to ensure everything is set up correctly.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to this error message for any specific guidance or patches that may be applicable.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CN21, CN22, CJ20N, and others related to project management and networks.
  SAP Notes: Check for any SAP Notes that might address this specific error message or provide additional troubleshooting steps.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.