How To Fix WD104 - Error in CDS generation: &

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 104

• Message text: Error in CDS generation: &

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WD104 - Error in CDS generation: & ?

  Certainly! Here's a detailed explanation regarding the SAP error message:
  
  SAP Error Message:
  WD104 Error in CDS generation: &
  
  1. Cause
  The error WD104 typically occurs during the generation or activation of a Core Data Services (CDS) view or related Web Dynpro components that rely on CDS views. The placeholder & in the message usually gets replaced by a more specific error detail or object name in the actual system.
  Common causes include:
  
  Syntax errors in the CDS view definition: The CDS source code might have syntax issues or unsupported constructs.
  Missing or inconsistent annotations: CDS views require proper annotations; missing or incorrect annotations can cause generation failures.
  Dependency issues: The CDS view might depend on other views or database objects that are inactive, missing, or inconsistent.
  Authorization or system inconsistencies: Lack of proper authorizations or system inconsistencies can cause generation errors.
  Transport or system inconsistencies: If the CDS view was transported incorrectly or the system is inconsistent, generation can fail.
  Incorrect or missing metadata: Metadata inconsistencies in the underlying database tables or views.
  
  
  2. Solution
  To resolve the WD104 Error in CDS generation, follow these steps:
  
  
  Check the detailed error message:
  
  Look at the full error message in the system logs or the activation log. The placeholder & should be replaced by a more specific error detail. This will guide you to the exact cause.
  
  
  Review the CDS view source code:  
  
  Open the CDS view in the ABAP Development Tools (ADT) in Eclipse or SAP GUI.
  Check for syntax errors or warnings.
  Validate all annotations and ensure they are correct and supported.
  
  
  
  Check dependencies:  
  
  Verify that all dependent views, tables, and database objects exist and are active.
  Activate any inactive dependent objects.
  
  
  
  Activate the CDS view again:  
  
  Sometimes, simply reactivating the CDS view after fixing issues resolves the problem.
  
  
  
  Check system consistency:  
  
  Run consistency checks for the database and repository objects.
  Use transaction SE14 or DBACOCKPIT to check database objects.
  
  
  
  Check authorizations:  
  
  Ensure the user activating the CDS view has the necessary authorizations.
  
  
  
  Check transport logs:  
  
  If the CDS view was transported, verify the transport logs for errors.
  
  
  
  Use transaction /IWFND/ERROR_LOG (for OData services):  
  
  If the CDS view is exposed as an OData service, check the error logs for more details.
  
  
  
  Consult SAP Notes:  
  
  Search for SAP Notes related to the error message or your specific CDS view.
  
  
  
  
  3. Related Information
  
  Transaction /IWFND/MAINT_SERVICE: For OData services based on CDS views.
  ABAP Development Tools (ADT): Use ADT in Eclipse for better CDS view development and error checking.
  SAP Help Portal: Documentation on CDS views and annotations.
  SAP Notes and KBAs: Search the SAP Support Portal for notes related to WD104 or CDS generation errors.
  Common SAP Notes:
  
  Note 2345678 (example) - Issues with CDS view activation.
  Note 1234567 (example) - Annotations causing CDS generation errors.
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WD104 Error in CDS generation: &
  
  
  Cause
  Syntax errors, missing annotations, inactive dependencies, authorization issues
  
  
  Solution
  Check detailed error, fix syntax/annotations, activate dependencies, verify authorizations
  
  
  Tools
  ABAP Development Tools (ADT), /IWFND/ERROR_LOG, SE14, DBACOCKPIT
  
  
  References
  SAP Notes, SAP Help Portal, SAP Support Portal
  
  
  
  
  If you provide the exact text replacing & or the context in which the error occurs, I can help you with a more precise diagnosis and solution.