Jonatan Thanks for posting your question in Microsoft Q&A. Based on my understanding, you are looking to create a webhook URL so that HubSpot can invoke and webhook can process the data. Correct? Please correct me if I misunderstood.
You can use Azure Functions Http Trigger which can act as a webhook service for HubSpot and there are a couple of examples such as SharePoint webhook as well as GitHub webhook (Full training sample). This will be a good starting point and use it as a reference/template and modify the code for your scenario.
Similarly, Azure Logic Apps can be used to create a webhook that is triggered by an HTTP request from HubSpot. For this scenario, use HTTP webhook built-in connector and here is the doc: Create and run automated event-based workflows by using HTTP webhooks in Azure Logic Apps for reference which includes step by step guide.
Once you have set up webhook, you can process data from SQL (or another database) and push it back to CRM.
I hope this helps and let me know if you have any questions.
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