How To Fix WL420 - Workflow '&' wait step & object &: Element '&' not in container/empty

WL420 - Overview

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 420

• Message text: Workflow '&' wait step & object &: Element '&' not in container/empty

What causes this issue?

A wait step could not be activated since the object required (its ID)
is not located in the workflow container under the name '&V4&' which
was specified for it in the workflow definition.

System Response

The workflow was set to error status and suspended.

How to fix this error?

Make sure that an object is entered in the variable &V4& before the
wait step is called. Check:
the container variable &V4& is written correctly.
the binding for this variable is defined correctly.
whether the variable has been assigned a value during the workflow
execution before the wait step was called.

Error message extract from SAP system. Copyright SAP SE.

WL420 - Details

• The SAP error message WL420 indicates that there is an issue with a workflow step in SAP Business Workflow. Specifically, the message states that a wait step is looking for an element that is either not present in the container or the container is empty. This can occur in various scenarios, such as when a workflow is expecting a certain data element to be populated but it is not available at the time the workflow is executed.
  
  Cause:
  
  Missing Data: The workflow is expecting a specific data element to be present in the workflow container, but it is missing or has not been populated.
  Incorrect Workflow Configuration: The workflow definition may not be correctly set up to ensure that the required data is available at the wait step.
  Timing Issues: The workflow may be trying to access the data before it has been populated, leading to an empty container at the time of execution.
  Errors