For every output field, identify the authoritative source, freshness expectation, transformation, uncertainty, and reviewer. An invoice amount may come from the supplier document, while approval authority comes from company policy and an identity record. A forecast assumption comes from an owner and versioned plan, not from the most recent number found in a conversation.
Preserve negative evidence such as missing purchase approval, mismatched entity, duplicate reference, stale exchange-rate source, failed connector response, or absent reviewer. The workflow should not complete a packet by omitting what prevented completion. Reviewers need to see whether a value is confirmed, allocated, estimated, modeled, disputed, or missing.
Reconciliation rules should specify tolerances, timing, and ownership rather than relying on a vague notion of matching. A quantity can match while tax, currency, entity, period, or payment status differs. When several records partially agree, the packet should show the dimensions and leave the disposition open for the authorized finance reviewer.