Microsoft recently announced that it will begin blocking Exchange Web Services (EWS) requests in Exchange Online starting October 1, 2026. As the platform transitions to the more secure and modern Microsoft Graph API, you might be wondering how this major update impacts your IT environment.

The good news is that IssTech customers have nothing to worry about. This blog post breaks down exactly what the EWS deprecation means for your organization and how IssTech is working closely with our trusted partner, AvePoint, to manage the transition seamlessly. We are proactively tracking updates, validating your managed services and backups, and ensuring all necessary data flows shift to the Graph API well before Microsoft's deadline.

Currently, no immediate action is required on your part. We are handling the heavy lifting so you don't have to! If you need to approve new Microsoft Graph permissions in your tenant down the line, IssTech will provide plenty of advance notice and clear, step-by-step guidance. Read the full post to learn more about our proactive approach, and find out how to stay informed on all critical IT updates.