How To Fix WD378 - Outcome "&" has no ID. Please define an ID.

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 378

• Message text: Outcome "&" has no ID. Please define an ID.

What causes this issue?

The check for an activity returned an error because no ID was defined
for an active outcome.
There are two use cases for the ID of the outcome:
Use within an application callback.
The flexible workflow allows the application in callback methods to
respond to events. Within callback methods the program can access the
ID of the outcome. The following callback methods allow access to the
ID of the outcome:
IF_SWF_FLEX_IFS_RUN_APPL~RESULT_CALLBACK
With parameter IO_RESULT you obtain a result object, which returns the
result using method GET_RESULT. Component
WI_ID: ID of the workflow
WI_TYPE: Type of the workflow (F)
RESULT: <ZH>ID of the Outcome in the Scenario</>
NATURE: Property (positive, negative, ...)
ACTOR: Name of the agent
IF_SWF_FLEX_IFS_RUN_APPL_STEP~AFTER_COMPLETION_CALLBACK
With parameter IO_CURRENT_ACTIVITY and method
IO_CURRENT_ACTIVITY->GET_EXECUTION_RESULTS a list of the last results
can be retrieved. The component RESULT contains the ID of the outcome.
The ID of the outcome is assigned in the modelling scenario by the
application developer and should be extracted from the technical event.
Exposure in the CDS I_WorkflowStepResult
The CDS view I_WorkflowStepResult exposes the potential results
(outcomes) of a step. Outcomes with no ID are not exposed. This means
that for a completed task instance, no further information about the
outcome (result) of the instance can be displayed.

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?

On the table ?Outcomes?, enter an ID and a property (positive, negative,
neutral) for each active outcome. The IDs of an activity must be unique.
Please note that when an ID is changed, it can lead to unwanted side
effects, for example, the semantics of a result is changed.

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 WD378 - Outcome "&" has no ID. Please define an ID. ?

  SAP Error Message:
  
  WD378 Outcome "&" has no ID. Please define an ID.
  
  Cause:
  This error occurs in Web Dynpro applications when an outcome (navigation action) is defined without an associated ID. In Web Dynpro, navigation between views or components is controlled by outcomes, and each outcome must have a unique ID. If an outcome is referenced or used without an ID, the framework cannot identify it properly, leading to this error.
  Common scenarios causing this error:  
  
  An outcome is declared in the Web Dynpro component or view but the ID property is missing or empty.  
  The navigation action is triggered programmatically or via UI elements, but the outcome ID is not set or incorrectly referenced.  
  The outcome is defined with a placeholder or special character (like "&") instead of a valid ID.
  
  
  Solution:
  
  
  Check Outcome Definitions:  
  
  Open the Web Dynpro component or view in the Web Dynpro Explorer.  
  Navigate to the Navigation tab or the Actions tab where outcomes are defined.  
  Verify that each outcome has a valid, non-empty ID. The ID should be a meaningful string (e.g., "GO_TO_OVERVIEW", "SAVE_AND_EXIT").
  
  
  
  Correct Outcome IDs:  
  
  If you find an outcome with an ID of "&" or empty, replace it with a proper ID.  
  Save and activate the component after making changes.
  
  
  
  Check Navigation Calls in Code:  
  
  If navigation is triggered programmatically (e.g., wdThisComponent.getNavigationController().fireNavigation("OUTCOME_ID")), ensure the string passed as the outcome ID matches the defined outcome ID exactly.
  
  
  
  Rebuild and Test:  
  
  After correcting the outcome IDs, rebuild and test the Web Dynpro application to confirm the error is resolved.
  
  
  
  
  Related Information:
  
  Web Dynpro Navigation: Outcomes are essential for controlling the flow between views/components. Each outcome must have a unique ID.  
  SAP Note / Documentation: Check SAP Help Portal for Web Dynpro navigation concepts and best practices.  
  Debugging: Use the Web Dynpro debugger or trace logs to identify where the invalid outcome ID is used.  
  Common Mistake: Using special characters or placeholders like "&" as outcome IDs is invalid.
  
  
  Summary:
  The error "WD378 Outcome '&' has no ID. Please define an ID." means that a navigation outcome is missing a proper ID. Define a valid ID for the outcome in the Web Dynpro component/view and ensure all navigation calls use this ID to fix the issue.