Task Execution Order
When you link tasks in a Workflow, you establish their execution order, which goes from left to right. In Workflows that do not contain parallel task executions, this is straightforward. This graphic illustrates the execution order of the tasks in a Workflow that has no parallel executions:
In Workflows that contain parallel task executions, you must think of the Workflow editor as a grid. The tasks in the first column are processed first from top to bottom; then the columns in the second column are processed also from top to bottom, then the tasks in the third column, and so forth. This graphic illustrates the execution order of the tasks in a Workflow that has parallel executions:
Specifying Calendar or time conditions can alter the order in either case. For example, you may want a task in a daily Workflow to not execute on Mondays; the Workflow executes everyday but, on Mondays, that task is skipped and the following task is executed instead.
See also: