How To Fix WP406 - Language code & cannot be converted

WP406 - Overview

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 406

• Message text: Language code & cannot be converted

What causes this issue?

The conversion rule for language code &V1& is unknown.

System Response

The relevant record cannot be prepared in POS - interface outbound
processing. The relevant document cannot be posted in the SAP system in
POS - interface inbound processing.

How to fix this error?

<DS:SIMG.W_DF_VK_0123.SIMG_OPOS>Define a conversion rule for the
language code </>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WP406 - Language code & cannot be converted ?

  The SAP error message:
  WP406 Language code & cannot be converted
  typically occurs when the system encounters a language code that it cannot recognize or convert during processing, often in HR (Human Resources) or Payroll modules where language-dependent data is handled.
  
  Cause
  
  The language code being processed is either invalid, not maintained, or not recognized by the SAP system.
  This can happen if:
  The language code is missing or blank.
  The language code is not defined in the system (transaction SMLT).
  The language code is incorrectly passed from an external system or during data migration.
  Custom programs or interfaces are passing an unsupported language code.
  
  
  The system tries to convert or interpret the language code but fails because it does not exist in the language code table.
  
  
  Solution
  
  
  Check the language code being used:
  
  Identify the language code causing the error (the placeholder & in the message will be replaced by the actual code in the system).
  Verify if this language code exists in