Parallel

This activity executes two or more branches in a workflow simultaneously. Each branch executes simultaneously, and the workflow waits for one or all branches to complete, depending on the configuration of the Parallel activity.

When you use a Parallel activity to execute multiple branches at the same time, additional validation is performed on the workflow.

If any of the following conditions are found, an error message is displayed. You must correct the error; otherwise, the workflow will not run as expected.

Only one branch in the Parallel activity can contain an activity with a Bookmark activity.

For example, a Greeting activity cannot be used on multiple Parallel branches because it contains a Bookmark.
A GoTo activity can only reference an activity within its branch. You cannot use a GoTo activity to continue on another branch.
A branch can't reference variables that are defined or used in another branch. Each branch has independent variable references.
Parallel activities cannot be nested. You cannot place a Parallel activity inside a Parallel branch.

Table 1. Parallel action - Inputs
Parameters	Description
Parallelism	'Wait on All' waits for all parallel activities to complete before moving forward in the workflow. 'Wait on One' waits for at least one activity to complete before moving forward in the workflow.

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