How To Fix 5U406 - Language key/Conversion type &/& combination has not been defined

5U406 - Overview

• Message type: E = Error

• Message class: 5U - HR US: Messages

• Message number: 406

• Message text: Language key/Conversion type &/& combination has not been defined

What causes this issue?

The language key and conversion type has not been defined.

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?

Check that this has been correctly defined in view V_T596U, Conversion
table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 5U406 - Language key/Conversion type &/& combination has not been defined ?

  The SAP error message 5U406 indicates that there is an issue with the language key and conversion type combination in the system. This error typically arises when the system is unable to find a valid mapping for the specified language and conversion type, which can occur in various contexts, such as data conversion, reporting, or when processing certain transactions.
  
  Cause:
  
  Missing Configuration: The language key and conversion type combination has not been defined in the system configuration.
  Incorrect Data Entry: The user may have entered an invalid language key or conversion type that does not exist in the system.
  Custom Development: If there are custom programs or enhancements, they may not be handling the language and conversion type correctly.
  Transport Issues: If the configuration was transported from another system, it may not have included the necessary definitions.
  
  
  Solution:
  
  
  Check Configuration:
  
  Go to the relevant configuration settings in SAP (usually in transaction SPRO).
  Navigate to the section where language keys