Where the organization is a joint controller, it must determine the respective roles and responsibilities for processing, including privacy and security requirements, transparently and in a contract or similar binding document covering matters such as the purpose of the sharing, the parties, the categories of data shared, the processing operations, the allocation of technical and organizational measures, responsibility in the event of a breach including who notifies and when, retention and disposal terms, liabilities, how obligations to individuals are met and how they can obtain information, and a contact point for individuals.
ISO 27701:2019 7.2.7 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of ISO 27701:2019 your existing evidence covers. Hold SOC 2 and 58 of 108 ISO 27701:2019 controls already carry evidence.
Each report names every control your existing framework evidences, every one it does not, the reasoning behind each claim, and the claims that were argued against and rejected. 289 were rejected on the SOC 2 pair alone.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.