How To Fix TN891 - tp parameter MT_MODE = &1 does not match the system type "&2"

SAP Error Message - Details

• Message type: E = Error

• Message class: TN - Support Package Manager (SPAM) Messages

• Message number: 891

• Message text: tp parameter MT_MODE = &1 does not match the system type "&2"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message TN891 - tp parameter MT_MODE = &1 does not match the system type "&2" ?

  The SAP error message TN891 indicates a mismatch between the transport parameter MT_MODE and the system type defined in the transport directory. This error typically occurs during transport operations when the configuration of the transport system does not align with the expected settings for the specific system type.
  Cause:
  The error message TN891 tp parameter MT_MODE = &1 does not match the system type "&2" suggests that the value of the MT_MODE parameter (represented by &1) does not correspond to the system type (represented by &2). This can happen due to:
  
  Incorrect Configuration: The transport directory or the transport profile may have been incorrectly configured, leading to a mismatch.
  System Type Change: If the system type was changed (e.g., from Development to Quality Assurance), the transport parameters may not have been updated accordingly.
  Transport Directory Issues: There may be issues with the transport directory settings or the transport layer configuration.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the Transport Profile:
  
  Go to the transport profile settings in the SAP system.
  Verify the MT_MODE parameter in the transport profile and ensure it matches the expected value for the system type.
  
  
  
  Update the Transport Directory:
  
  Navigate to the transport directory (usually found in the trans directory of your SAP installation).
  Check the TP configuration files and ensure that the MT_MODE parameter is set correctly for the system type.
  
  
  
  Adjust the System Type:
  
  If the system type has changed, update the transport configuration to reflect the new system type.
  You can do this by using transaction STMS to access the Transport Management System and adjust the settings accordingly.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to transport management for specific guidance on configuring transport parameters.
  
  
  
  Restart Transport Tools:
  
  After making changes, restart the transport tools or services to ensure that the new settings take effect.
  
  
  
  Check for SAP Notes:
  
  Look for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  Transport Management System (TMS): This is the framework used in SAP for managing transports between different systems (Development, Quality Assurance, Production).
  Transport Directory: This is the directory structure where transport files and configuration settings are stored.
  System Types: Common system types in SAP include Development (D), Quality Assurance (Q), and Production (P). Each type has specific transport requirements.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.