Now, Workflow users are able to customize step submissions for their end users throughout their workflow. Submission steps are used to inform your workflow participants that their information was captured and the next step is rendering or their workflow is complete. This feature ensures allows users to customize their Workflow experience by adding unique messages and custom branding. Step messages can be set to the default mode or an individualized message.
Check out this support article for step-by-step instructions for setting up custom submission steps.