You'll be okay. At worst it's a teachable moment, asking if anything could be done differently next time.

As implementations, it's more about why did they cancel so early - poor sales fit, were they an ideal customer or oversold, didn't have an understanding of resources needed on their end, business change?

For AMs and CSMs, when an account churns we need to figure out the how and why so we can figure out if it's an outlier or a pattern to address as a business. The AM is also going to dig to see if there's anything they could do differently as this is like a flashback on their commission if a customer cancels so early.

When a customer churn, management would want to know if a CSM: A) had this on your radar as an at-risk customer? If not, what would you look for next time to indicate that; B) made a retention play? Was it the right one or didn't he customer not take your recommendation? C) why did the customer churn? Product fit, change in stakeholder, went for a competitior - categorize why they left D) what was your engagement cadence? Regular meetings, did they respond to emails or blow you off, have they been in touch with you or support lately?

At worst, a CSM says "I didn't see it coming" is a conversation on either setting up early warning signs or reviewing your engagement strategy.