How To Fix CDS_UNIT_MESSAGE018 - Provide atleast one dependency in the dependency list.

SAP Error Message - Details

• Message type: E = Error

• Message class: CDS_UNIT_MESSAGE - Message Class

• Message number: 018

• Message text: Provide atleast one dependency in the dependency list.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CDS_UNIT_MESSAGE018 - Provide atleast one dependency in the dependency list. ?

  The SAP error message CDS_UNIT_MESSAGE018 typically indicates that a required dependency is missing in a Core Data Services (CDS) view or entity definition. This error arises when the system expects at least one dependency to be defined, but none has been provided.
  Cause:
  The error is caused by the absence of a dependency in the CDS view definition. Dependencies in CDS views are used to establish relationships between different data sources or entities. If a CDS view is defined without any dependencies, the system cannot resolve the data relationships, leading to this error.
  Solution:
  To resolve the CDS_UNIT_MESSAGE018 error, you need to ensure that at least one dependency is defined in your CDS view. Here are the steps to do this:
  
  
  Open the CDS View Definition: Access the CDS view in the ABAP Development Tools (ADT) or the relevant transaction in SAP.
  
  
  Add Dependencies: In the CDS view definition, you need to specify at least one dependency. This can be done by:
  
  Using the @AbapCatalog.sqlViewName annotation to define the SQL view name.
  Including the @AbapCatalog.compiler.compareFilter annotation if necessary.
  Adding the define view statement with the appropriate as select statement that includes the necessary tables or views.
  
  
  
  Example of Adding a Dependency:
  define view Z_MY_CDS_VIEW
  as select from Z_MY_TABLE
  {
      key field1,
      field2,
      field3
  }
  
  
  Activate the CDS View: After making the necessary changes, activate the CDS view to ensure that the changes take effect.
  
  
  Test the CDS View: Execute the CDS view to verify that the error has been resolved and that the view returns the expected results.
  
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. CDS views allow for the creation of complex data models that can be consumed by various applications.
  Dependencies: Dependencies in CDS views can include other CDS views, database tables, or other data sources. They are essential for establishing relationships and ensuring data integrity.
  SAP Documentation: For more detailed information, refer to the official SAP documentation on Core Data Services, which provides guidelines on defining views, annotations, and best practices.
  
  By following these steps and ensuring that your CDS view has the necessary dependencies, you should be able to resolve the CDS_UNIT_MESSAGE018 error effectively.