ShelCron

Integrations & Automation

Calendar Integration

Scheduling and calendar sync with Google/Microsoft calendars for booking and ops workflows.

Calendar Integration connects scheduling to the systems that need it—booking links, resource calendars, reminders, and CRM activities. We handle OAuth carefully, respect free/busy boundaries, and keep sync behavior predictable when users reschedule or cancel.

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Who it’s for

  • Product teams building booking experiences
  • Ops teams syncing appointments to CRM
  • Internal tools coordinating rooms or technician schedules

Problems we address

  • Double bookings from disconnected tools
  • OAuth tokens expire and quietly break sync
  • Cancellations do not propagate to dependent systems

Expected outcomes

  • OAuth-connected calendar flows with refresh handling
  • Create/update/cancel sync rules for agreed event types
  • Monitoring when token or API failures occur

Capabilities

Concrete engineering capabilities included in a typical engagement for this service.

Google Calendar and Microsoft Graph integrations

Booking and availability patterns

Event create/update/delete sync

Reminder and notification hooks

CRM activity writing from calendar events

Token lifecycle and reconnect UX notes

Technology

Representative technologies used for this service. Final stack depends on your estate.

  • Google Calendar API
  • Microsoft Graph
  • OAuth 2.0
  • Webhooks / push notifications
  • CRM APIs

Architecture

Integration flow

Events move between systems through APIs, queues, and workflow runners.

Source systemWebhook / APIQueueAutomationTarget system

Deliverables

  • Calendar integration design
  • Implemented OAuth and sync flows
  • Failure monitoring for auth and API errors
  • Operator reconnect guide

Out of scope

  • Full marketplace scheduling product builds unless scoped
  • Identity provider licensing

Timeline

Typical timeline

1–4 weeks

Timeline depends on scope, access, and dependencies—not a delivery guarantee.

Process

A clear delivery path from discovery through handover and optional support.

  1. 01

    Discovery

    Goals, constraints, success criteria, and current-state review.

  2. 02

    Architecture

    Target design, interfaces, risks, and delivery sequence.

  3. 03

    Implementation

    Incremental build with visible progress and documented decisions.

  4. 04

    Testing

    Functional checks, failure paths, and acceptance criteria validation.

  5. 05

    Deployment

    Controlled release to staging and production with rollback paths.

  6. 06

    Handover

    Runbooks, access notes, and operator/admin walkthrough.

  7. 07

    Support

    Optional hypercare window or retainer continuity after go-live.

Custom engagement

Pricing depends on architecture, traffic profile, and integration depth. Share your requirements for a scoped quote.

FAQ

Yes, when permissions allow. Shared/resource calendars need explicit access grants during setup.

Ready to build?

Tell us about your environment, constraints, and target outcomes. We’ll recommend a package or a scoped quote.