How To Fix UMG377 - The IUUC mode is switched off.

SAP Error Message - Details

• Message type: E = Error

• Message class: UMG - Message Class for the Unicode Migration Tool.

• Message number: 377

• Message text: The IUUC mode is switched off.

What causes this issue?

You tried to create an IUUC converter object but it cannot be created
because the IUUC mode is switched off in the SPUMG settings.

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?

Make sure that you switched on the IUUC mode correctly (report
UMG_IUUC_CONTROL).

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 UMG377 - The IUUC mode is switched off. ?

  The SAP error message UMG377, which states "The IUUC mode is switched off," is related to the SAP Landscape Transformation (SLT) replication process. IUUC stands for "Integrated Unit of Change," and it is a mode used in SLT to enable real-time data replication from source systems to target systems.
  Cause:
  The error message indicates that the IUUC mode is not enabled for the SLT configuration. This can happen due to several reasons:
  
  Configuration Settings: The IUUC mode may not have been activated in the SLT configuration settings.
  System Settings: There may be system-level settings or restrictions that prevent the IUUC mode from being enabled.
  Version Compatibility: The version of the SLT or the source/target systems may not support IUUC mode.
  Technical Issues: There could be underlying technical issues or bugs that are preventing the IUUC mode from being activated.
  
  Solution:
  To resolve the UMG377 error, you can follow these steps:
  
  
  Check SLT Configuration:
  
  Go to the SLT configuration in the SAP system.
  Verify if the IUUC mode is enabled. If it is not, you will need to enable it.
  
  
  
  Enable IUUC Mode:
  
  In the SLT configuration, navigate to the "Settings" or "Replication" section.
  Look for an option to enable IUUC mode and activate it.
  
  
  
  Review System Settings:
  
  Check if there are any system-level settings that might be preventing the activation of IUUC mode.
  Consult with your system administrator or BASIS team if necessary.
  
  
  
  Check for Updates:
  
  Ensure that your SLT system and the source/target systems are updated to the latest versions that support IUUC mode.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for SLT and IUUC mode for any specific instructions or prerequisites.
  
  
  
  Contact SAP Support:
  
  If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance. They can provide insights based on the specific configuration and version of your systems.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SLT Documentation: Review the SAP Help Portal for detailed documentation on SLT and IUUC mode.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  
  By following these steps, you should be able to resolve the UMG377 error and enable the IUUC mode for your SLT replication process.