@RubixVi If you check the Webhooks section in the link you shared, you’ll see that Square has supported them for quite some time.
We can help close the gap by leveraging real-time triggers through Square webhooks, completely eliminating the need for day-by-day syncs. There is no need for a dedicated API server either as we can leverage the power of cloud computing serverless architectures.
This 2023 post has resurfaced in 2025 because many users are still struggling to bring appointment data into HubSpot using the native Square–HubSpot integration.