How To Fix ATM_ATTRIBUTE010 - A resp. def. external name must start with 'Z_'

SAP Error Message - Details

• Message type: E = Error

• Message class: ATM_ATTRIBUTE - Messages for Attributes

• Message number: 010

• Message text: A resp. def. external name must start with 'Z_'

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 ATM_ATTRIBUTE010 - A resp. def. external name must start with 'Z_' ?

  The SAP error message ATMATTRIBUTE010 indicates that there is an issue with the naming convention of an attribute in the context of the SAP system. Specifically, the error states that a "resp. def. external name must start with 'Z'". This typically occurs when you are trying to create or modify an attribute in the SAP system, and the name you have provided does not adhere to the required naming conventions.
  Cause:
  
  Naming Convention Violation: In SAP, custom objects (like attributes, tables, etc.) are usually required to start with 'Z' or 'Y' to differentiate them from standard SAP objects. This is a part of SAP's naming convention to avoid conflicts with standard SAP objects.
  Incorrect Configuration: If you are configuring attributes in a custom development or enhancement, the name you provided does not meet the required format.
  
  Solution:
  
  Rename the Attribute: Change the name of the attribute you are trying to create or modify to start with 'Z' or 'Y'. For example, if your attribute is named CUSTOM_ATTR, rename it to Z_CUSTOM_ATTR.
  Check Configuration: Review the configuration settings where the error occurred to ensure that all custom attributes follow the naming convention.
  Re-attempt the Operation: After renaming the attribute, try to save or activate the changes again.
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for custom objects. This is crucial for avoiding similar errors in the future.
  Development Guidelines: Refer to SAP's development guidelines and best practices for creating custom objects, which often include naming conventions, documentation standards, and performance considerations.
  Transaction Codes: If you are working in a specific transaction (like SE11 for Data Dictionary, SE80 for Object Navigator, etc.), ensure you are following the correct procedures for creating or modifying objects.
  
  If you continue to encounter issues after following these steps, consider consulting with your SAP Basis or development team for further assistance.