HubSpot E-Signature: Automate Agreements Beyond Quotes

A quote is not the only document your customer needs to sign

A HubSpot deal may involve a proposal, but the full customer relationship can also require a statement of work, NDA, onboarding agreement, service terms, consent form, or renewal. If those documents live in separate folders and are sent manually, the sales team loses visibility just when a deal should be moving forward.

UnderSign can provide a separate e-signature workflow connected to HubSpot through an API-based integration. The aim is not to claim that HubSpot has no signing capability: eligible HubSpot quote workflows already support e-signatures. The opportunity is to handle additional document types, public signing scenarios, or custom processes where a dedicated workflow makes business sense.

Start with the document that falls outside the quote

Consider a digital agency that sells a marketing package through HubSpot. The quote is accepted, but the agency still needs a service agreement and access authorization. A configured workflow can:

• identify the deal and associated contact;
• check that the commercial terms have been approved;
• prepare the service agreement;
• send a standard signature request to the named contact;
• record the UnderSign request reference against the deal or another suitable HubSpot record;
• reflect the completion result for the team's next step.

The important outcome is continuity: the salesperson should not have to maintain a separate spreadsheet just to know whether the agreement has been signed.

Three HubSpot scenarios worth automating

Scenario A: The deal needs a separate agreement

Use a standard signature request for an NDA, consulting agreement, implementation scope, or customer-specific contract sent to a known contact.

Scenario B: A campaign creates a list of agreements

When a defined group of existing customers or partners needs to sign updated terms, Bulk Signing can create an independent request for each recipient. Use a reviewed recipient list and a stable CRM identifier so the result can be reconciled to the correct record.

Scenario C: A prospect signs before becoming a contact

A public Signing Link or QR code can be used on a landing page, at a physical location, or during an event for documents such as a waiver or participation consent. The person can initiate signing without being pre-created as a HubSpot contact. If the business wants to create or match a contact afterward, define that step explicitly and collect only necessary information.

Avoid a common automation mistake

Do not trigger signature requests from every deal update. CRM records can change many times, and an automation may run more than once. Use a clear eligibility condition, store the request ID, and check whether an active request already exists before creating another one. If the document changes after sending, decide whether the old request should be cancelled and replaced.

What to measure

Useful measures include time from deal approval to first signature request, median time to completion, the number of requests still pending, failed or duplicated sends, and the percentage of agreements completed without manual intervention. These metrics help determine whether the integration is solving a real bottleneck.

Frequently Asked Questions