Numerous significant third-party programs have abandoned the watchOS App Store in recent years, and it appears that this issue is still present. This time, Microsoft has declared that the Apple Watch will no longer be compatible with its two-step authentication software, "Microsoft Authenticator."
Microsoft stated on its support website that the companion watchOS app would be removed in a Microsoft Authenticator iOS app upgrade due in January 2023. As a result, Apple Watch owners won't be able to utilize the device to access the service anymore.
The business asserts that the Apple Watch operating system is "incompatible with Authenticator security features," which is why it decided to terminate the watchOS software. Additionally, Microsoft advises customers who still have Authenticator installed on their Apple Watches to remove it because it is scheduled to stop functioning starting in one month.
It's important to note that just the watchOS version of the software is impacted by this, so users may continue to use Microsoft Authenticator on iPhone and iPad.
According to the business:
In the upcoming Authenticator release in January 2023 for iOS, there will be no companion app for watchOS due to it being incompatible with Authenticator security features. This means you won’t be able to install or use Authenticator on Apple Watch. We therefore recommend that you delete Authenticator from your Apple Watch. This change only impacts Apple Watch, so you will still be able to use Authenticator on your other devices.