Which of the following actions must be taken first for a process to use a sub-process?

For a process to utilize a sub-process, it is crucial that the parent process is published first. This is because the parent process serves as the primary workflow that will execute and call the sub-process when needed. Publishing ensures that the parent process is active and accessible within the Appian environment, thus allowing it to initiate any associated sub-processes seamlessly.

While it is important for the sub-process to be defined and visually represented, those actions can be completed after the parent process is defined and published. The publication of the parent process sets the foundation for the overall process structure and enables any calls to sub-processes to function correctly. Without publishing the parent process, the entire workflow, including the sub-process references, would not be operational, making it a critical first step.