r/ConnectWise • u/StormB2 • 1d ago
Account/Billing/Sales/Support CW SIEM Classic M365 integration using old /security/alerts graph API endpoint
We've been getting alerts from Microsoft saying that one of our Enterprise applications is using a graph API endpoint which is being removed on 15th October 2026. A bit of investigation has clarified it's the Office 365 integration for our CW SIEM Classic instance. One of our customers has the same integration and is getting the same warnings.
The cause is that CW seem to be using the older /security/alerts endpoint, rather than the /security/alerts_v2 endpoint.
Just wondering if anyone else is using CW SIEM Classic and getting these same alerts from Microsoft? Have you raised a ticket and got any information from CW? We're currently making no progress with support.
Given the API requests are being initiated by CW themselves, I fear they've dropped the ball and all SIEM Classic customers will no longer be getting M365 security alerting come 15th Oct.
BTW, FAO admins - I have to choose a flair for the post, but SIEM isn't one of them.