How To Fix SWF_FLEX_DEF132 - CDS view '&' has no key field for work item ID and can't be used

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_FLEX_DEF -

• Message number: 132

• Message text: CDS view '&' has no key field for work item ID and can't be used

What causes this issue?

This CDS view will be used to provide runtime data of the current
work item. The work item is represented by key WI_ID. The CDS view
must have key field "WorkflowTaskInternalID".

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?

Select another CDS view.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_FLEX_DEF132 - CDS view '&' has no key field for work item ID and can't be used ?

  The SAP error message SWF_FLEX_DEF132 indicates that a Core Data Services (CDS) view is being used in a context where a key field for the work item ID is required, but the specified CDS view does not have a key field defined. This can occur in scenarios involving workflow or task management where the system needs to uniquely identify work items.
  Cause:
  
  Missing Key Field: The CDS view referenced in the error message does not have a key field defined that can be used to uniquely identify records, specifically the work item ID.
  Incorrect Configuration: The CDS view may not be configured correctly for the intended use case, particularly in the context of workflows or task management.
  Incompatibility: The CDS view may not be compatible with the workflow framework due to its structure or the way it is defined.
  
  Solution:
  
  Add a Key Field: Modify the CDS view to include a key field that can be used to uniquely identify work items. This typically involves adding a field that corresponds to the work item ID.
  
  Open the CDS view definition in the ABAP Development Tools (ADT).
  Ensure that the field representing the work item ID is marked as a key field in the view definition.
  Example:
  define view my_cds_view
  as select from my_table
  {
    key field1,
    field2,
    ...
  }
  
  
  
  Check View Usage: Ensure that the CDS view is being used in the correct context and that it is intended for use with workflows.
  Test the Changes: After making changes to the CDS view, test it to ensure that the error no longer occurs and that the workflow functions as expected.
  Consult Documentation: Review SAP documentation or notes related to the specific CDS view and its intended use in workflows to ensure compliance with best practices.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to this error.
  CDS View Documentation: Familiarize yourself with the documentation on creating and managing CDS views in SAP, especially regarding key fields and their importance in workflows.
  Workflow Configuration: Review the configuration of the workflow to ensure that it is set up correctly to utilize the CDS view.
  
  If you are not familiar with modifying CDS views or if you do not have the necessary authorizations, it may be advisable to consult with a developer or an SAP Basis administrator who can assist with the changes.