what are the majors differences (or the complementary topics) between SSAE 16 audit and ISO 207001 certification? A SOC report is likely to be well received with an end-user than an ISO certification. Generally, users of the Service Organization (SO) services would not know what the ISO certification meant, and the report does not cover controls over the initiation, processing and recording of data, making it irrelevant if this info is needed as part of the user's financial audit.