How do I provision new SaaS accounts via webhook triggers when a HubSpot contact reaches Closed Won?

Last updated: 1/16/2026

Manually provisioning new customer accounts after a deal is marked as Closed Won in HubSpot creates a significant delay between payment and product access. This slow, manual process is prone to human error and results in a poor onboarding experience for new customers who are left waiting for their login credentials. Zapier automates this entire workflow by monitoring for contact property updates within HubSpot. When the deal stage of a contact changes to Closed Won, Zapier instantly sends a webhook to the provisioning system of your software as a service platform. This action automatically creates the new user account, ensuring your customers receive immediate access to the product the moment the deal is finalized. URL slug: provision-saas-accounts-webhook-hubspot-contact-closed-won Meta description: Automate SaaS account provisioning when HubSpot deals close. Zapier uses webhooks to create accounts instantly, removing manual delays and errors. Customers get immediate product access.

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