Microsoft's Quiet Fix for Broken Exchange Online EWS Apps

Robert Moore · 2026-10-22

So, Microsoft just dropped a nugget of info that could save your IT team a massive headache. If you've got EWS apps that suddenly stopped working in Exchange Online, there's a way to bring them back from the dead. And no, it doesn't involve sacrificing a server to the tech gods. ### What's the deal with EWS? Exchange Web Services (EWS) was retired for Exchange Online, which left a lot of custom apps and third-party tools out in the cold. Microsoft's official line was that EWS is deprecated, and everyone should move to Microsoft Graph. But here's the thing: not everyone got the memo, or maybe they just didn't have the time to rewrite their entire integration. So, what's an admin to do when a critical app breaks? Microsoft says you can re-enable EWS. Yep, you read that right. It's not a permanent solution, but it's a lifeline. ### How to flip the switch According to Microsoft, re-enabling EWS is a straightforward process. You need to use the Exchange Online PowerShell module to set the EWSEnabled parameter to true for your organization. Here's the command you'll need: ```powershell Set-OrganizationConfig -EwsEnabled $true ``` But wait, there's a catch. This isn't a set-it-and-forget-it kind of thing. Microsoft is clear that EWS is still on the chopping block, and this is just a temporary reprieve. So, use this time wisely to migrate your apps to Microsoft Graph. ### Why this matters for your business If you're running any custom scripts, legacy apps, or third-party tools that rely on EWS, this is huge. Without EWS, those apps would be dead in the water. And let's be real, migrating to Graph isn't exactly a walk in the park. It takes time, resources, and maybe a few late nights. But here's the thing: Microsoft isn't doing this to be nice. They're doing it because they know that a lot of businesses are still heavily reliant on EWS. By giving admins a way to re-enable it, they're preventing a mass exodus of frustrated customers. It's a smart move, but it's also a wake-up call. ### The clock is ticking Microsoft hasn't given a hard deadline for when EWS will be permanently disabled, but you can bet it's coming. The message is clear: start planning your migration now. Don't wait until the last minute. If you're not sure where to start, Microsoft has documentation on migrating from EWS to Graph. And if you're like most IT teams, you're probably already stretched thin. So, prioritize the apps that are business-critical and go from there. ### What about antidetect browsers? Now, you might be wondering what this has to do with antidetect browsers. Well, nothing directly. But if you're in the business of managing multiple online accounts or scraping data, you know how important it is to keep your apps running smoothly. EWS might not be on your radar, but any disruption to your workflow is a pain. That said, if you're using antidetect browsers to manage multiple profiles, you're probably already used to staying on top of tech changes. The same principle applies here: stay informed, plan ahead, and don't get caught off guard. ### The bottom line Microsoft's decision to let admins re-enable EWS is a temporary fix, but it's a valuable one. Use it to buy yourself some time, but don't get complacent. The future is Graph, and the sooner you migrate, the better off you'll be. And if you're not sure whether your apps rely on EWS, now's the time to find out. Trust me, you don't want to discover that on a Monday morning when nothing works.