How To Fix V4178 - Transmitted language &1 is invalid

V4178 - Overview

• Message type: E = Error

• Message class: V4 - Nachrichten Verkauf (Variable Meldungen und EDI-Meldungen)

• Message number: 178

• Message text: Transmitted language &1 is invalid

What causes this issue?

Languages must be in ISO format.
Language &V1& sent in by the customer either does not exist or you have
not made the appropriate entry to convert it to a language key
recognized in the SAP System.

System Response

The system terminates processing of the intermediate document (IDoc).

Error message extract from SAP system. Copyright SAP SE.

V4178 - Details

• The SAP error message V4178, which states "Transmitted language &1 is invalid," typically occurs in the context of SAP's Sales and Distribution (SD) module when there is an issue with the language settings in a document or transaction. This error indicates that the system has received a language code that it does not recognize or that is not configured in the system.
  
  Cause:
  
  Invalid Language Code: The language code being transmitted (represented by &1 in the error message) is not valid or not recognized by the SAP system.
  
  Configuration Issues: The language may not be configured in the system settings or may not be supported for the specific transaction or document type.
  Data Entry Errors: There may be a typo or incorrect entry in the language field when creating or processing a document.
  Integration Issues: If the data is being transmitted from an external system (like an EDI or third-party application), the language code may