How To Fix E2022 - Name &1 is already reserved by a type group in &2 (see documentation)

SAP Error Message - Details

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 022

• Message text: Name &1 is already reserved by a type group in &2 (see documentation)

What causes this issue?

You wish to create a Dictionary object in a namespace that is already
taken by a type group.
The type group &V1 exists globally in the SAP System &V2.
Within a type group you can define any number of types whose names are
based on the names of the type group, an underscore line, and the type
name.
There is the danger that a type defined in the type group matches the
name of the object you have created. This causes the following problems:
The name collision between a type defined in a type group and a
Dictionary object causes a syntax error in the type group and all
dependent objects (programs, classes, and so on).
After a transport of both (defined in different systems) Dictionary
objects into a common system, the type group and all dependent objects
will be syntactically incorrect.

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?

Choose a different name for the new Dictionary object.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E2022 - Name &1 is already reserved by a type group in &2 (see documentation) ?

  The SAP error message E2022 indicates that there is a naming conflict in your ABAP program or development object. Specifically, it means that the name you are trying to use (denoted as &1) is already reserved by a type group in the specified package or namespace (&2). This typically occurs when you attempt to define a new type group or a data object with a name that is already in use.
  Cause:
  
  Naming Conflict: The name you are trying to use for a type group is already taken by an existing type group in the system.
  Namespace Issues: If you are working in a specific namespace or package, the name might be reserved for that context.
  Development Objects: You might be trying to create a new development object (like a function module, class, or data element) that conflicts with an existing object.
  
  Solution:
  
  
  Rename the Type Group: The simplest solution is to choose a different name for your type group that does not conflict with existing names. Ensure that the new name follows the naming conventions and is unique within the relevant namespace.
  
  
  Check Existing Type Groups: Use transaction SE11 (Data Dictionary) or SE80 (Object Navigator) to check for existing type groups. You can search for the name you intended to use to see if it is already defined.
  
  
  Review Documentation: The error message suggests checking the documentation. You can look for more details in the SAP Help Portal or the ABAP documentation to understand the implications of type groups and naming conventions.
  
  
  Consult with Team: If you are working in a team environment, consult with your colleagues or the development team to ensure that the name you want to use is not already in use or reserved for future use.
  
  
  Transport Requests: If you are working in a transport environment, ensure that the naming conflicts are resolved before transporting your changes to other systems.
  
  
  Related Information:
  
  Type Groups: In ABAP, a type group is a collection of type definitions that can be used across different programs. They are defined in the Data Dictionary and can be reused.
  Naming Conventions: SAP has specific naming conventions for various objects. Familiarize yourself with these conventions to avoid conflicts.
  Namespace Management: If you are developing in a custom namespace, ensure that you are following the guidelines for naming objects within that namespace.
  
  By following these steps, you should be able to resolve the E2022 error and continue with your development work in SAP.