Is there some special notation in BPMN to indicate that a task to should return to the previous task. I can do that with a XOR gate and lots of paths out depending on the entered state, but seems a bit unwieldly. Say you have a large workflow which contains the notion of a company, and at any point that company can go on sanctions, suspending the workflow, i.e.:
But as the number of tasks goes up this becomes cumbersome:
It can be made slightly better if the "Wait for sanctions lift" task knows where it came from:
But it is still kind of ugly.