Hi @ABablu
“HubSpot does not enforce rate limits only on the Bulk APIs; most HubSpot APIs are rate-limited, even when you are not using batch or bulk endpoints. In addition to endpoint-specific rate limits, HubSpot also enforces an overall API call limit that depends on your HubSpot subscription. If this daily or rolling API call allowance is exhausted, requests may fail or return errors, which can appear inconsistent if multiple integrations or users are consuming the quota at the same time.
It’s also important to note that rate limits can be affected by burst traffic and concurrent requests, not just total API usage. Even when your API call count looks fine, making several requests in parallel can temporarily exceed per-second or rolling limits, resulting in 429 or generic server errors. Some APIs also behave with eventual consistency, meaning a request may succeed, but immediate follow-up calls (such as reads after writes) may fail or return incomplete data.
If you can share the specific API endpoints you are calling, the error messages or status codes you’re seeing, and whether your requests are sequential or parallel, it will be much easier to identify the exact cause and suggest a reliable solution.”
I hope this will help you out. Please mark it as Solution Accepted and upvote to help another Community member.
Thanks!