How To Fix 37596 - Logon with Unicode ON in Unicode system. Continue with Alpha screen

SAP Error Message - Details

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 596

• Message text: Logon with Unicode ON in Unicode system. Continue with Alpha screen

What causes this issue?

You are working in a system that is set up as a Unicode system,
where the SAP front end uses the Unicode character set.
The graphical Screen Painter cannot support this Unicode character
set.

System Response

The functions provided by the graphical Screen Painter cannot be
used. The system automatically switches to the alphanumeric layout.

How to fix this error?

You can only use the graphical Screen Painter in a Unicode system if
you set your SAP front end so that it does not automatically use the
Unicode character set (UTF-8).
For this purose, you must log on to the system with a special
SAPLogon entry. In this entry, the property "Unicode OFF" must be
set under "Other Settings" in the "Language Settings" box.
This setting is available as of SAPLogon 6.20, Patch 33.
For more details, refer to notes 316903 and 508854.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 37596 - Logon with Unicode ON in Unicode system. Continue with Alpha screen ?

  The SAP error message 37596, which states "Logon with Unicode ON in Unicode system. Continue with Alpha screen," typically occurs when there is an issue related to the character encoding settings in a Unicode-enabled SAP system. This error can arise when a user attempts to log in or perform actions that involve character data that is not compatible with the Unicode settings.
  Cause:
  
  Character Encoding Mismatch: The error often indicates that the system is expecting Unicode characters, but the input or data being processed is in a non-Unicode format.
  User Profile Settings: The user profile may not be set up correctly to handle Unicode characters.
  Data Input Issues: The data being entered may contain characters that are not supported in the Unicode character set.
  Legacy Systems: If there are integrations with non-Unicode systems, data transfer issues may arise.
  
  Solution:
  
  Check User Profile: Ensure that the user profile is correctly configured to support Unicode. This includes checking the user’s default language and character set settings.
  Data Validation: Validate the data being entered to ensure it contains only Unicode-compatible characters. Remove or replace any unsupported characters.
  System Configuration: Review the system configuration to ensure that it is set up correctly for Unicode. This may involve checking the SAP kernel version and ensuring it supports Unicode.
  Use of Alpha Screen: If the error suggests continuing with the Alpha screen, it may be a temporary workaround. The Alpha screen is a simplified interface that may allow users to bypass certain character encoding checks.
  Consult Documentation: Refer to SAP documentation or support notes related to Unicode issues for specific guidance and troubleshooting steps.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves complex data or system configurations.
  
  Related Information:
  
  Unicode in SAP: Unicode is a universal character encoding standard that allows for the representation of text in most of the world's writing systems. SAP systems can be either Unicode or non-Unicode, and it is essential to ensure compatibility when dealing with data.
  SAP Notes: Check for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Testing in Development: If possible, replicate the issue in a development or test environment to better understand the cause and test potential solutions without affecting production data.
  
  By following these steps, you should be able to address the error message 37596 and ensure proper handling of Unicode data in your SAP system.