How To Fix SADL_GW_DT_CDS034 - Element &1 cannot be used in annotation &2 because of annotation &3.

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_CDS - Messages CDS Checks

• Message number: 034

• Message text: Element &1 cannot be used in annotation &2 because of annotation &3.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_DT_CDS034 - Element &1 cannot be used in annotation &2 because of annotation &3. ?

  The SAP error message SADL_GW_DT_CDS034 typically occurs in the context of Core Data Services (CDS) views and annotations in SAP Gateway or SAP Fiori applications. This error indicates that there is a conflict or issue with the use of a specific element (field) in an annotation due to another annotation's constraints or requirements.
  Cause:
  The error message can arise from several scenarios, including:
  
  
  Incompatible Annotations: The element you are trying to use in a specific annotation is not compatible with the requirements of another annotation. For example, if you are trying to use a field in a UI annotation that is not allowed due to its data type or other constraints.
  
  
  Data Type Mismatch: The data type of the element may not be suitable for the annotation you are trying to apply. For instance, if an annotation expects a certain type (like a string) and you provide a different type (like an integer), this error can occur.
  
  
  Missing Annotations: Sometimes, the required annotations for the element may not be defined, leading to conflicts when trying to use it in another context.
  
  
  Hierarchy Issues: If the element is part of a hierarchy or a complex structure, it may not be directly usable in the context of the annotation you are trying to apply.
  
  
  Solution:
  To resolve the SADL_GW_DT_CDS034 error, consider the following steps:
  
  
  Check Annotations: Review the annotations applied to the element and ensure they are compatible. Look for any conflicting annotations that may be causing the issue.
  
  
  Verify Data Types: Ensure that the data type of the element matches the expected type for the annotation. If there is a mismatch, you may need to change the data type or use a different element.
  
  
  Review CDS View Definition: Check the definition of the CDS view to ensure that all required annotations are present and correctly defined. Make sure that the element is properly annotated for the context in which it is being used.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific annotations you are using. This can provide insights into the requirements and limitations of each annotation.
  
  
  Debugging: If the issue persists, consider debugging the CDS view or using transaction codes like SE11 or SE80 to analyze the structure and annotations of the CDS view.
  
  
  SAP Notes and Community: Check for any relevant SAP Notes or community discussions that may address similar issues. Sometimes, there are known bugs or updates that can resolve the problem.
  
  
  Related Information:
  
  SAP Gateway: Understanding how SAP Gateway interacts with CDS views and annotations can help in troubleshooting.
  Core Data Services (CDS): Familiarize yourself with the principles of CDS, including how annotations work and their intended use cases.
  SAP Fiori Elements: If you are working with Fiori applications, understanding how Fiori Elements utilize annotations can provide context for resolving the error.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.