Invoices arrive at the right moment
The vendor invoice arrives after work is completed, when the owner still has enough context to review the record.
That makes it the best trigger for maintenance history creation.
Source of truth does not mean no review
Invoices can contain ambiguous dates, vague descriptions, and missing asset names.
The system should extract quickly but require review where confidence or impact demands it.
One event powers many surfaces
A confirmed invoice can create a timeline event, update asset status, inform reminders, enrich vendor history, and appear in a packet.
That compounding effect is why Steward is built around invoices rather than generic tasks.