How To Fix SDDIC_ADT_DDLA040 - Names may not contain only the '_' character

SDDIC_ADT_DDLA040 - Overview

• Message type: E = Error

• Message class: SDDIC_ADT_DDLA - Messages for Annotation Definition Design Time

• Message number: 040

• Message text: Names may not contain only the '_' character

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 SDDIC_ADT_DDLA040 - Names may not contain only the '_' character ?

  The SAP error message SDDIC_ADT_DDLA040 indicates that a name (likely for a data element, domain, or similar object) is invalid because it consists solely of the underscore character (_). In SAP, naming conventions are important, and certain restrictions apply to ensure that names are meaningful and adhere to the system's standards.
  
  Cause:
  The error occurs when you attempt to create or modify an object in the ABAP Dictionary (ADT) with a name that does not meet the naming conventions. Specifically, names cannot consist solely of the underscore character, as this does not provide any meaningful identification for the object.
  
  Solution:
  To resolve this error, you should rename the object in question to ensure that it contains valid characters and is not just an underscore. Here are some steps you can take:
  
  
  Choose a Meaningful Name: Select a name that reflects the purpose of the object. For example, instead of using _, you might use my_object_name