Workflow and exception handling -

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In order to develop a custom workflow that will execute several task items, it is possible that one or more functions fail at any time

What is the best practice to handle the exceptions that work within the workflow manager

For example, do the workflow management system Just log the log and then die completely? Will the workflow manager log on to the exception only and continue the execution of other operations?

I would say that it is very interdependent.

Parcel Dispatch Parcel

Definitely the failure of step 1 should not be done after the execution of step 2?

Check Price with Seller A Check Price with Seller B ... Check Price with Seller Buy Cheap Buy

Price in Check Something's Failure Probably

I think you'll need to enable at least 

  Park it for human intervention

and 

  Sorry your action can not be processed

but it will be very difficult The breakfast. You may need to enable compensation (undo the last job). For example Book Hotel, try booking a flight - fails, is not enough to break Hmmm, we also need to unknow that hotel.

You may also need to enable 

  unsuccessful, I'll try again later.

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