We are trying to integrate an internal system to netsuite, but we keep running into issues where 1 of the systems doesn't support it. For OAuth 2.0 Authorization Code Grant Flow is there anyway to automate the refresh? The reason we avoided this in the past was due to the consent screen that seemingly needs to popup every 7 days to refresh the token

you can have a hub middleware that manages your APIs calls and authenticate it using Oauth1.0 if your system not support Oauth1.0 integration. another approach you can use suitlet as your endpoint and this's a work-around. need to make validation like restrict IP address or something as validation over suitlet