Exceptions
As you analyze your business problem, you should include as much information about exceptions as possible. For the employees of your company, graceful exception management will result in a noticeable increase in productivity. If exception handling is flawed, integration automation might actually result in decreased productivity because a lot of time is spent on dealing with exceptions.
If exceptions are included in your initial design, you can make them part of the business process, and ultimately deliver a more robust system faster.
Decide on exception handling standards across business phases to make it easier to identify exceptions and understand how they are related.