How To Fix /SDF/S1101 - A customizing '&1' already exists.Choose another name!

SAP Error Message - Details

• Message type: E = Error

• Message class: /SDF/S1 -

• Message number: 101

• Message text: A customizing '&1' already exists.Choose another name!

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SDF/S1101 - A customizing '&1' already exists.Choose another name! ?

  The SAP error message /SDF/S1101 A customizing '&1' already exists. Choose another name! typically occurs when you are trying to create a new customizing object (like a configuration, a table entry, or a similar object) in the SAP system, but an object with the same name already exists. This is a common issue in SAP systems when there are naming conflicts.
  Cause:
  
  Duplicate Name: The most straightforward cause is that the name you are trying to use for the new customizing object is already in use by another object in the system.
  Transport Issues: Sometimes, if you are working in a development environment and the object was transported to another environment (like production), you might not be aware that the name is already taken.
  Namespace Conflicts: If you are using a custom namespace, there might be conflicts with standard SAP objects or other custom objects.
  
  Solution:
  
  Choose a Different Name: The simplest solution is to select a different name for your customizing object that does not conflict with existing names.
  Check Existing Objects: Use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or SE37 (Function Modules) to search for existing objects with the same name. This will help you identify what is already in use.
  Review Transport Requests: If you suspect that the object exists in another environment, check the transport requests to see if it has been moved to the system you are working in.
  Namespace Management: If you are working in a custom namespace, ensure that you are following the naming conventions and that your names are unique within that namespace.
  Consult Documentation: If you are unsure about the naming conventions or the existing objects, consult the documentation or guidelines provided by your organization.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes like SE11, SE80, SE37, and SE38 for managing and searching for objects.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to customizing objects and naming conventions.
  Development Guidelines: Follow your organization’s development guidelines to avoid naming conflicts in the future.
  
  By following these steps, you should be able to resolve the error and successfully create your customizing object in SAP.