We are struggling with an old automation built in Visual Studio 2015 with Pega RPA Open span.

All of a sudden an error message appears in Runtime and it´s goes like this:

Error executing link in Automation: REST_P_GET-Kundnr - From: OpenSpan Automation.EntryPoint.Generic Error To: GC.messageManifest. GetMessageDetails()messageDefinition returned by GetMessageDefinition is null.

We are aware of that the name "REST_P_GET-Kundnr" is specific to this automation but maybe the rest of the message is generic in some way an also the fact that it´s a REST_GET-call maybe reveal something...

Is it about API´s that can´t be reached or could it be something else.

Thankful for suggestions.