Which statement is TRUE regarding the Error Message tool?

The statement regarding the Error Message tool that is accurate is that if the expression defined in the Error Message tool evaluates to true, then the error message will indeed be displayed. This tool is typically used to provide feedback or instructions to users during the execution of a workflow, particularly when a specific condition is met that signifies an error or a warning.

The Error Message tool works by evaluating an expression you set up; if that expression returns true, it triggers the error message to appear. This capability allows for enhanced user experiences by guiding them through potential issues that may arise, ensuring they are aware of what needs to be corrected or understood before proceeding.

In contrast, error messages can be configured in the Interface Designer, and they can appear during both design time (in the context of a workflow) and runtime, depending on how the workflow is executed. Moreover, error messages are not restricted to containing just numeric values; they can be textual as well, allowing for a wider range of messages to be conveyed to the user.