Key contractor's engagement ends before knowledge handover is complete

Risk statement. The contractor who built the billing reconciliation service finishes on 30 September. No handover has been scheduled, and there is no written documentation of the reconciliation logic beyond code comments.

Trigger / early warning. Fewer than four weeks remaining with no handover sessions booked. This trigger has already fired.

Consequence if realised. The team inherits an unfamiliar service that touches money. Incident response time on billing issues goes from hours to days.

Current response. Mitigate. Structured handover plus paired work on the next two billing changes before the engagement ends.