Hey Harshit,
Great question! Before we get to what External Objects are, here's a quick tip; you can click the "?" button on the Blue Prism title bar. It sits to the left of the Minimize button. Doing so will take you to the online help for the BP screen you are on =]
On to External Objects, you can find information on it at
https://bpdocs.blueprism.com/bp-6-8/en-us/helpBusinessObjects.htm. Below is an excerpt from the link.
External business objects are a legacy mechanism representing a wrapper for locally deployed COM objects. Superseded by visual business objects, external business objects must be explicitly registered on each device where they will be used. Typically, this will be each runtime resource and interactive client used for development. Registration is carried out within System Manager.
To add an external business object in System Manager, select Objects > External from the navigation tree. In the Add a new object field, input the name of the object and click Go.
External business objects should not be considered for new developments. It is recommended that you use visual business objects.
Hope this helps!
Regards.
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Madhur Chopra
Sr. Product Consultant
Blue Prism - Professional Services
America/Los_Angeles
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