How To Fix CNVMBTRFC043 - Unicode setting for RFC Destinations not correct. Check destinations.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBTRFC - Messages used in RFC Management and its objects

• Message number: 043

• Message text: Unicode setting for RFC Destinations not correct. Check destinations.

What causes this issue?

One or several of your destinations have not the correct unicode flag.
When your system is unicode and the system where you want to create a
connection to is unicode then the unicode flag for the destination has
to be set to unicode. If this is not the case then you get this error
message.
To find the error causing destination determine the destinations you
want to use. For each of the destinations call the transaction SM59. In
the application toolbar you have the 'Unicode Test'. Do the unicode
check by clicking on the 'Unicode Test'. You will get a message whether
your destination is unicode or not. Under tab 'MDMP & Unicode' you
find the unicode flag for that destination. If the system where you have
called the SM59 and the system of the destination are unicode then the
unicode flag must be set. If not, the Non-unicode flag has to be set.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

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 CNVMBTRFC043 - Unicode setting for RFC Destinations not correct. Check destinations. ?

  The SAP error message CNVMBTRFC043 indicates that there is an issue with the Unicode settings for RFC (Remote Function Call) destinations in your SAP system. This error typically arises during data migration or when using certain tools that require proper Unicode configuration for RFC connections.
  Cause:
  The error is caused by one or more of the following issues:
  
  Incorrect Unicode Settings: The RFC destination is not configured to support Unicode, which is necessary for systems that handle multilingual data.
  RFC Destination Configuration: The RFC destination may not be set up correctly, or it may be pointing to a non-Unicode system.
  Network Issues: There could be network connectivity issues that prevent the RFC destination from being reached.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary permissions.
  
  Solution:
  To resolve the CNVMBTRFC043 error, follow these steps:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in your SAP system.
  Locate the RFC destination that is causing the issue.
  Check the settings for the destination, ensuring that it is configured for Unicode. The "Unicode" checkbox should be checked if the target system is Unicode-enabled.
  
  
  
  Verify Target System:
  
  Ensure that the target system (the system you are trying to connect to) is indeed a Unicode system. You can check this in the target system by going to transaction SICF and looking for the Unicode setting.
  
  
  
  Test the RFC Connection:
  
  In transaction SM59, select the RFC destination and use the "Test Connection" button to verify that the connection is working properly. This will help identify any connectivity issues.
  
  
  
  Check User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to perform the required actions.
  
  
  
  Review SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or patches related to this error. You can search for notes in the SAP Support Portal.
  
  
  
  Consult Documentation:
  
  Review the documentation for the specific migration tool or process you are using, as it may have additional requirements or configurations needed for Unicode support.
  
  
  
  Related Information:
  
  Unicode Support: Unicode is a standard for encoding characters that allows for the representation of text in multiple languages. SAP systems that are Unicode-enabled can handle a wider range of characters and are essential for global applications.
  RFC Destinations: RFC destinations are configurations in SAP that define how to connect to other SAP systems or external applications. Proper configuration is crucial for successful data exchange.
  SAP Support: If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to resolve the CNVMBTRFC043 error and ensure that your RFC destinations are correctly configured for Unicode.