How To Fix SADL_GW_DT_CDS017 - Association #TO_COMPOSITION_ROOT in CDS view &1 is missing.

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_CDS - Messages CDS Checks

• Message number: 017

• Message text: Association #TO_COMPOSITION_ROOT in CDS view &1 is missing.

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 SADL_GW_DT_CDS017 - Association #TO_COMPOSITION_ROOT in CDS view &1 is missing. ?

  The SAP error message SADL_GW_DT_CDS017 indicates that there is an issue with an association in a Core Data Services (CDS) view. Specifically, it states that the association #TO_COMPOSITION_ROOT is missing in the specified CDS view. This error typically arises when the CDS view is trying to reference an association that has not been defined or is incorrectly defined.
  Cause
  
  Missing Association: The association #TO_COMPOSITION_ROOT is not defined in the CDS view.
  Incorrect Association Name: The name of the association might be misspelled or incorrectly referenced.
  Inconsistent Data Model: The underlying data model may not have the expected relationships defined, leading to the absence of the association.
  Changes in Data Model: If there have been recent changes to the data model or the CDS view, the association may have been removed or altered.
  
  Solution
  
  Define the Association: Ensure that the association #TO_COMPOSITION_ROOT is defined in the CDS view. You can do this by adding the appropriate association definition in the CDS view code. For example:
  define view Your_CDS_View
  as select from your_table
  association [0..*] to Another_CDS_View as _ToCompositionRoot
  on $projection.key_field = _ToCompositionRoot.key_field
  {
      key field1,
      field2,
      ...
  }
  
  Check for Typos: Verify that the association name is spelled correctly in both the definition and the reference.
  Review Data Model: Check the underlying data model to ensure that the necessary relationships are defined and that the associated CDS views are correctly implemented.
  Activate the CDS View: After making changes, ensure that you activate the CDS view to reflect the updates.
  Check Dependencies: If the CDS view depends on other views or tables, ensure that those are also correctly defined and activated.
  
  Related Information
  
  CDS Views: Core Data Services (CDS) are a way to define semantically rich data models in SAP. They allow for the definition of views that can include associations, annotations, and more.
  SAP Documentation: Refer to the official SAP documentation for CDS views and associations for more detailed information on how to define and use them.
  Debugging Tools: Use tools like the ABAP Development Tools (ADT) in Eclipse to debug and analyze the CDS view and its associations.
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.