I like to recommend installing the free demo version just before getting and check the need for session management. The OC Session Manager module is largely supposed for OpenCart 3. Opencart stores some person knowledge (language, currency, cart, etcetera.) in PHP periods. OpenCart can store this info in two approaches: https://pulseiras-de-tripla-prote83843.nizarblog.com/31983647/the-5-second-trick-for-opencart-limited