Skip to content
LienDeadline

API integrations

Integration guide

LienDeadline is designed to work where your operations already run—finance software, ERP systems, project tools, and automated workflows.

Try guided API playgroundOpen Swagger explorer
Accounting and ERP
Move calculation events and project context into your commercial finance stack.

  • QuickBooks

    Native

    Sync invoices and closeout activity directly from your existing accounting workflows.

  • Custom ERP connectors

    API-first

    Build direct integrations for internal systems using clean REST endpoints and webhooks.

Project controls
Align lien deadlines with project teams and bid coordination.

  • Procore

    Native

    Bring project metadata and deadlines into construction project management workflows.

  • Project trackers via webhooks

    Custom

    Push or pull notification events when preliminary notice or lien filing windows change.

Automation and communication
Use existing automation platforms for reminders, notifications, and approvals.

  • Zapier

    Catalog app

    Expose LienDeadline events to Slack, Google Workspace, email, CRM, Xero, Airtable, and 5,000+ app connections.

  • Sheets / Airtable / CSV pipelines

    API + automation

    Export payloads into operations dashboards, reporting tools, and analyst workflows.

QuickBooks Online

Invoice sync for lien deadline operations

LienDeadline connects to QuickBooks Online so users can import recent invoices, verify state and project type, calculate lien deadlines, and optionally write lien status back to the linked invoice.

Start free trialSign in to connect

Connect

Users authorize LienDeadline from the dashboard using Intuit's approved Connect to QuickBooks button.

Import

Recent QuickBooks invoices are listed in the verification queue with customer, amount, date, and calculated deadline fields.

Review

Users confirm state and project type before saving an imported invoice as a monitored project.

Sync back

When enabled, lien status and deadline updates can be written to the linked QuickBooks invoice private note or configured custom field.

Multi-company

Accountants and operators with multiple QuickBooks companies can select the active company and disconnect one company without affecting others.

Disconnect

Users can disconnect from QuickBooks from the integration settings page. Imported calculations remain available in LienDeadline.

Need a custom onboarding path?
We can help you plan an enterprise-ready integration sequence in under one week for a custom connector, pilot, and rollout checklist.
Talk to solutions team