How To Fix R7109 - Field &1 is reserved (please select other names)

R7109 - Overview

• Message type: E = Error

• Message class: R7 - BW: Data basis

• Message number: 109

• Message text: Field &1 is reserved (please select other names)

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 R7109 - Field &1 is reserved (please select other names) ?

  The SAP error message R7109, which states "Field &1 is reserved (please select other names)," typically occurs when you are trying to use a field name that is reserved by the SAP system or is not allowed for user-defined fields. This can happen in various contexts, such as when creating custom fields in data dictionary objects, structures, or tables.
  
  Cause:
  
  Reserved Names: The field name you are trying to use is reserved by SAP for internal use or is part of a naming convention that is not allowed.
  Naming Conventions: SAP has specific naming conventions for fields, and using names that do not conform to these conventions can trigger this error.
  Existing Fields: The name you are trying to use may already be in use by another field or object in the system.
  
  
  Solution:
  
  Choose a Different Name: The simplest solution is to select a different name for your field that does not conflict with SAP's