The organization must limit processing of personal data to what is adequate, relevant and necessary for the identified purposes, managing that limitation through its information security and privacy policies with documented procedures for their adoption and compliance, and limiting by default the disclosure of data, the period it is stored, and who is able to access it, to the minimum the identified purposes require.
ISO 27701:2019 7.4.2 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.