How To Fix SADL_GW_DT_CDS018 - Enter a valid primary key for CDS view &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_CDS - Messages CDS Checks

• Message number: 018

• Message text: Enter a valid primary key for CDS view &1.

What causes this issue?

A CDS view must contain the key fields of its parent. These key fields
are required to build the compositional association.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Contact the corresponding developer of the CDS view to correct the
error.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_DT_CDS018 - Enter a valid primary key for CDS view &1. ?

  The SAP error message SADL_GW_DT_CDS018 indicates that there is an issue with the primary key being used in a Core Data Services (CDS) view. This error typically occurs when the primary key provided in a request does not match any existing records in the database or is not valid for the specified CDS view.
  Cause:
  
  Invalid Primary Key: The primary key value provided in the request does not exist in the underlying database table or view.
  Incorrect Data Type: The primary key value may not match the expected data type defined in the CDS view.
  Missing Key Fields: The request may be missing one or more key fields that are required to uniquely identify a record in the CDS view.
  Authorization Issues: The user may not have the necessary authorizations to access the data associated with the provided primary key.
  
  Solution:
  
  Verify Primary Key Values: Check the primary key values being sent in the request. Ensure that they are correct and correspond to existing records in the database.
  Check Data Types: Ensure that the data types of the primary key values match those defined in the CDS view. For example, if the primary key is defined as an integer, ensure that you are not sending a string.
  Include All Key Fields: If the CDS view has a composite key (multiple fields), make sure that all key fields are included in the request.
  Authorization Check: Ensure that the user has the necessary authorizations to access the data. You may need to check the user's roles and authorizations in the SAP system.
  Debugging: If you have access to the backend, you can debug the CDS view to see what values are being processed and where the error is occurring.
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. Understanding how CDS views work and their structure can help in troubleshooting issues.
  SAP Gateway: If you are using SAP Gateway services, ensure that the service is correctly configured and that the OData service is properly set up to handle requests.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on troubleshooting.
  Documentation: Refer to the official SAP documentation for CDS views and OData services for more detailed information on how to work with these technologies.
  
  By following these steps, you should be able to identify and resolve the issue causing the SADL_GW_DT_CDS018 error message.