The first version of CORE Connectivity provided an important first step toward connectivity by including requirements for: use of HTTP/S transport protocol over the public Internet, use of a specified minimum data set of metadata outside the X12 payload, e.g., date/time and payload ID, Response times, acknowledgements, and error notification.
CAQH CORE Connectivity vC2.2.0 builds upon the initial foundation continuing to provide a safe harbor for CORE-certified entities while including more definitive requirements beyond the transport level to the message envelop level. These enhancements in the CAQH CORE Connectivity vC2.2.0 provide requirements for encapsulating an expanded set of metadata needed for routing, submitter identification/authentication and auditing. Additionally, the CAQH CORE Connectivity vC2.2.0 requirements for message envelope and submitter authentication standards usage will significantly reduce the variation that exists in current implementations, thus supporting greater interoperability between trading partners.