How To Fix IUUC_MAIN034 - Select at least one of the systems (sender / receiver)

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_MAIN - IUUC: Main Message class

• Message number: 034

• Message text: Select at least one of the systems (sender / receiver)

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 IUUC_MAIN034 - Select at least one of the systems (sender / receiver) ?

  The SAP error message IUUC_MAIN034, which states "Select at least one of the systems (sender / receiver)," typically occurs in the context of SAP Landscape Transformation (SLT) replication setups. This error indicates that the system is expecting you to select at least one source (sender) or target (receiver) system for the operation you are trying to perform, but none has been selected.
  Cause:
  
  No System Selected: The most common cause of this error is that neither the sender nor the receiver system has been selected in the configuration or operation you are trying to execute.
  Configuration Issues: There may be issues with the configuration of the SLT system, where the sender or receiver systems are not properly defined or recognized.
  User Interface Error: Sometimes, it could be a user interface issue where the selection is not being registered correctly.
  
  Solution:
  
  Select a System: Ensure that you have selected at least one sender or receiver system in the relevant transaction or configuration screen. This is usually done in the SLT configuration transaction (e.g., LTRC).
  Check Configuration: Verify that the sender and receiver systems are correctly configured in the SLT setup. This includes checking the connection settings, system roles, and ensuring that both systems are active and reachable.
  Refresh the Screen: If you believe you have made the correct selections but still see the error, try refreshing the screen or re-entering the transaction to see if it resolves the issue.
  User Permissions: Ensure that you have the necessary permissions to access and select the sender and receiver systems.
  Consult Documentation: Refer to the SAP documentation for SLT for any specific requirements or steps that may have been overlooked.
  
  Related Information:
  
  Transaction Codes: Common transaction codes related to SLT include LTRC (for monitoring), LTRS (for configuration), and LTRC (for replication configuration).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  SLT Documentation: Review the official SAP documentation for Landscape Transformation to understand the setup and configuration requirements better.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or your internal SAP Basis team for further assistance.