How To Fix E2128 - Do not use underscores in type group names

E2128 - Overview

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 128

• Message text: Do not use underscores in type group names

What causes this issue?

The name of the object contains an underscore. This is not allowed by
the SAP name conventions.

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?

Please remove the underscore.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E2128 - Do not use underscores in type group names ?

  The SAP error message E2128, which states "Do not use underscores in type group names," typically occurs when you are trying to create or modify a type group in ABAP (Advanced Business Application Programming) and the name you have chosen includes underscores. In ABAP, type group names must adhere to specific naming conventions, and the use of underscores is not permitted.
  
  Cause:
  The primary cause of this error is the inclusion of underscores in the name of the type group you are trying to create or modify. SAP has specific naming conventions for various objects, and type groups are one of them. According to these conventions, type group names should consist of alphanumeric characters and should not include special characters like underscores.
  
  Solution:
  To resolve this error, you need to rename the type group to comply with SAP's naming conventions. Here are the steps you can follow:
  
  
  Choose a New Name: Select a new name