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Andrea BarquinAndrea Barquin 

Diagnose a Callout Exception


We recenlty refreshed our sanbox and we started getting  "System.CalloutException: Unexpected end of file from server" error when making an API call to the external service from our sandbox environment. It used to work fine before and the same call is still working in our production environment. 

There are no blocking rules in the Firewall. Is there a way to diagnose? Is possible to get something similar to a traceroute from the sanbox to our server where the API resides?