The protoErrorOffset is the number of the octet in which the error was discovered. The first octet in the message is octet number 0. WANTED A SALESMAN CALL @@@-@@@@ 

PCI\CC_010601

{4d36e96a-e325-11ce-bfc1-08002be10318}000 buynowbuynowbuynowbuynowbuynowbuynowbuynowbuynowbuynowbuynowbuynowbuynowbuynowbuynowbuynowbuynow