Kona Site Defender, App & API Protector with the Advanced Security module Turn on PII learning for your API definition. To enable PII learning, submit your request with a payload of {"enablePiiLearning": true}. To disable PII learning, submit your request with a payload of {"enablePiiLearning": false}. This operation applies at the security configuration level. Run Modify PII settings for an endpoint version to manage your API definitions in regards to PII.