Throw

Object used to cause an error or pass on the encountered error

An error caused by Throw can only be caught by the Catch block.

Settings to Throw an Error

Field	Description
Title	Object Title
Message	Describe the error message or add a variable (example: Error - {variable}).

Settings to pass on the error

In this case it is only possible if used within a Catch block.

Field	Description
Title	Object Title
Message	It must be left empty so that the robot understands that it needs to pass the error on to the next Catch block.