Faster, more accurate, more resilient Microsoft 365 synchronisation experience
At Sign In Solutions, we’re committed to delivering the most reliable calendar synchronisation experience possible. That’s why we strongly recommend that all customers currently running Graph v1 migrate to the latest version of our Calendar Synchronisation Engine (Graph v2) to ensure the best levels of stability, performance, and long-term support.
Why it’s important to run the latest sync engine
Calendar synchronisation is critical infrastructure. Even small delays or inconsistencies can result in booking issues, missed updates, or reduced trust in scheduling systems.
Running the latest engine ensures you benefit from continuous improvements and safeguards designed to keep your environment stable as Microsoft 365 evolves.
The Sign In Solutions Calendar Synchronisation Engine is built on three tenets
Performance
Optimised for speed and minimal latency, ensuring calendar events are synchronised in near real-time across the Planner and Microsoft 365 ecosystem. This means seamless updates and instant visibility into meeting changes, bookings, or cancellations — without bottlenecks.
Accuracy
We maintain strict alignment with calendar source-of-truth data, using proprietary algorithms to ensure data fidelity, respecting recurrence rules, time zones, attendee statuses, and metadata integrity.
Robustness
Engineered to withstand edge cases and disruptions. With built-in retry logic and self-healing mechanisms, the engine ensures resilience in the face of API rate limits, intermittent connectivity, or malformed data.
Key benefits of migrating from Graph v1 to Graph v2
By migrating to Graph v2, customers can expect:
Improved stability and reduced synchronisation disruptions
Faster updates for meeting changes, cancellations, and new bookings
Higher accuracy across complex calendar behaviours (recurrence, time zones, exceptions)
Greater resilience to Microsoft API throttling and transient connectivity issues
A sync engine built for scale, supporting high-volume environments with confidence
How to migrate
Migrating is straightforward.
To begin your migration from Graph v1 to Graph v2, please contact our support team:
📩 [email protected]
Subject: Migrate from Graph v1 to v2
Our team will guide you through the process and ensure a smooth transition.