How To Fix DDANNO401 - Unknown element '&2' in annotation '&1'

DDANNO401 - Overview

• Message type: E = Error

• Message class: DDANNO - CDS annotations

• Message number: 401

• Message text: Unknown element '&2' in annotation '&1'

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 DDANNO401 - Unknown element '&2' in annotation '&1' ?

  The SAP error message DDANNO401 indicates that there is an unknown element in an annotation. The message format is as follows:
  DDANNO401 Unknown element '&2' in annotation '&1'
  
  Cause:
  This error typically occurs when:
  
  An annotation in your ABAP code or metadata is referencing an element that does not exist or is not recognized by the system.
  There may be a typo in the annotation name or the element name.
  The annotation might be defined in a different context or version that is not compatible with the current environment.
  The system might be missing necessary components or updates that define the expected elements.
  
  
  Solution:
  To resolve the DDANNO401 error, you can take the following steps:
  
  
  Check the Annotation Definition:
  
  Verify that the annotation &1 is correctly defined in your code or metadata.
  Ensure that the element &2 is valid and exists in the context of the annotation.
  
  
  
  Correct Typos:
  
  Look for any typographical errors in the annotation or element names. Ensure that they match