Update termination status on previous deal when unconfirmed

Termination requests without confirmation can desync previous deal records, disrupting billing and renewals. It updates the prior deal's termination status and reason so managers can triage same day.

Overview

Unconfirmed termination requests leave billing and renewals teams guessing and delay collections. This flow marks the prior deal and records a cancellation reason so account managers know which contracts need immediate triage, typically within the same business day.