How To Fix /UI2/CDMFCC381 - MasterLanguage not maintatained as initial key. Using Fallback &1

/UI2/CDMFCC381 - Overview

• Message type: E = Error

• Message class: /UI2/CDMFCC -

• Message number: 381

• Message text: MasterLanguage not maintatained as initial key. Using Fallback &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/CDMFCC381 - MasterLanguage not maintatained as initial key. Using Fallback &1 ?

  The SAP error message /UI2/CDMFCC381 MasterLanguage not maintained as initial key. Using Fallback &1 typically occurs in the context of SAP Fiori applications or UI5 applications when there is an issue with the language settings or the configuration of the master language for a particular application or service.
  
  Cause:
  
  Missing Master Language Configuration: The master language for the application or service is not set or maintained in the system. This can happen if the application is not properly configured to support multiple languages.
  Fallback Mechanism: The system is attempting to use a fallback language (indicated by &1 in the error message) because it cannot find the required translations or texts in the master language.
  Transport Issues: If the application was recently transported from one system to another, the language settings may not have been included in the transport request.
  
  
  Solution:
  
  
  Maintain Master Language:
  
  Go to the relevant transaction (e.g., SE80 for Object Navigator or SE11 for Data