How To Fix E0557 - Choose another name! Name range reserved!

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 557

• Message text: Choose another name! Name range reserved!

What causes this issue?

Name of Form
A + digit sequence
are reserved for the generation of tRFC port names for internal number
assignment.

System Response

You cannot insert a port of a different type with a name of this type
or a tRFC port with an external number assignment.

How to fix this error?

Please choose a different name.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0557 - Choose another name! Name range reserved! ?

  The SAP error message E0557, which states "Choose another name! Name range reserved!", typically occurs when you are trying to create or modify an object (like a program, function module, or class) in the SAP system using a name that is already reserved or in use by the system or another user. This can happen in various contexts, such as when naming a new ABAP program, function module, or class.
  Cause:
  
  Reserved Names: The name you are trying to use is part of a reserved naming convention in SAP. Certain prefixes or name ranges are reserved for SAP standard objects or for specific development purposes.
  Existing Objects: The name you are trying to use may already be in use by another object in the system.
  Namespace Conflicts: If you are working in a namespace, the name might be reserved within that namespace.
  
  Solution:
  
  Choose a Different Name: The simplest solution is to select a different name for your object. Ensure that the new name does not conflict with existing names or reserved naming conventions.
  Check Naming Conventions: Familiarize yourself with the naming conventions and reserved name ranges in your SAP system. For example, SAP standard objects typically start with specific prefixes (like Z or Y for custom objects).
  Use Transaction Codes: You can use transaction codes like SE80 (Object Navigator) or SE11 (Data Dictionary) to check for existing objects and their names.
  Consult Documentation: Refer to SAP documentation or your organization's development guidelines to understand which name ranges are reserved and how to properly name your objects.
  Namespace Management: If you are working in a specific namespace, ensure that you are adhering to the naming rules defined for that namespace.
  
  Related Information:
  
  SAP Naming Conventions: SAP has specific naming conventions for different types of objects. Custom objects typically use the prefixes Z or Y to differentiate them from standard SAP objects.
  Development Guidelines: Organizations often have their own development guidelines that include naming conventions, so it’s a good idea to consult these documents.
  SAP Notes: Check SAP Notes for any updates or specific information related to naming conventions and reserved names.
  
  If you continue to encounter issues, consider reaching out to your SAP Basis or development team for further assistance.