Error Event

An error event defines a location where the microflow will stop and throw an error that occurred earlier. If you call a microflow, you may want to know whether any errors occurred within the microflow or not. This event throws the error again, so the caller of the microflow can catch them. All database actions within the current transaction will be rolled back.

In this example, an error is caught while committing an object to the database, and is rethrown at the error event. From outside the microflow, you can catch this error with custom error handling and react appropriately. So you can implement your error handling on multiple levels.