Is there anywhere that I can find a list of all possible errors that could be returned when trying to add a user via PHP API ($ConstantContact->addContact)? I need to do error checking on a website I am builiding and can't find these codes anywere. I know that there is a 401 and 409 errors, but what else? http://developer.constantcontact.com/doc/errorCodes does not have such a listing.
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