How To Fix 2Q004 - Domain &1 already known in domain &2

2Q004 - Overview

• Message type: E = Error

• Message class: 2Q - TMS Service Message Class

• Message number: 004

• Message text: Domain &1 already known in domain &2

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 2Q004 - Domain &1 already known in domain &2 ?

  The SAP error message 2Q004: "Domain &1 already known in domain &2" typically occurs in the context of domain management within the SAP system. This error indicates that there is an attempt to define a domain that is already associated with another domain, leading to a conflict.
  
  Cause:
  The error is caused by trying to create or modify a domain that has already been defined in the system. In SAP, domains are used to define the technical attributes of fields in the database, and each domain should be unique within its context. If you attempt to create a domain with the same name as an existing one, or if you try to assign a domain to another domain that is already linked, this error will be triggered.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Domains: Use transaction code SE11 (Data Dictionary) to check the existing domains. Look for the