429 API Rate Limit Error

Looking at this phrase…

If the call fails due to a rate limiting error, or a 429 or 5XX error from axios or @hubspot/api-client, HubSpot will reattempt to execute your action for up to three days, starting one minute after failure. Subsequent failures will be retried at increasing intervals, with a maximum gap of eight hours between tries

Unless your script is also going to run long to take full advantage of the long time span of re-trying you shouldn’t count on this. When you’re running into persistent API rate limiting issues, you’ll want to consider some level of decoupling to your flow. I would suggest looking into making a job queue to break up your processes up so that you’re better able to regulate the API calls