How To Fix WER444 - Type &1 is not a valid predefined type

WER444 - Overview

• Message type: E = Error

• Message class: WER - Messages for the package WER

• Message number: 444

• Message text: Type &1 is not a valid predefined type

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WER444 - Type &1 is not a valid predefined type ?

  SAP Error Message:
  WER444 Type &1 is not a valid predefined type
  
  
  Cause:
  This error occurs when a program or configuration tries to use a type that is expected to be a predefined (standard) type in SAP, but the specified type name (&1) is not recognized as such. In other words, the system cannot find the predefined data type with the name provided.
  Common scenarios include:
  
  A typo or incorrect type name used in ABAP code or configuration.
  Using a type that is not defined or not available in the current SAP system/version.
  Attempting to use a type that is custom or user-defined but referenced as a predefined type.
  Issues in data element or domain definitions where the type is incorrectly specified.
  
  
  
  Solution:
  
  
  Check the Type Name:
  
  Verify the exact type name used in the code or configuration.
  Ensure it matches one of the standard predefined types in SAP (e.g., I, C, D, P, N, F, etc.).
  
  
  
  Correct Typo or Syntax:
  
  Correct any spelling