What is the result of not declaring an argument in the invoked workflow when required data needs to be passed?

When an argument is not declared in the invoked workflow, the behavior observed is that the invoked workflow will run, but it will do so without receiving the necessary data. This results in the workflow executing without utilizing the expected input values. As a consequence, any operations or logic within that workflow that depend on those arguments may not function as intended, potentially leading to incomplete processes or unexpected outcomes.

This scenario underscores the importance of properly declaring and passing arguments in workflows. When arguments are expected and not provided, the workflow continues to execute, but it does so with the expected data missing, which might lead to logical errors or a failure to perform the intended tasks.

In contrast, other outcomes like failing to execute or defaulting to predefined values do not accurately describe the behavior of the invoked workflow in this context; the workflow does not inherently stop execution or automatically substitute missing arguments with defaults. Additionally, compile-time errors would only occur if the workflow configuration had mismatched or improperly defined settings.