Four hundred invoices a month, three front doors, and no record of what came in
This exhibit maps the path one supplier invoice takes today, from the vendor to the owner's weekend. Money is not leaking in the ledger. It is leaking at arrival, in the gap between three inboxes, one incomplete spreadsheet, and a binder.
400
supplier invoices in an average month (350-450 range)
3+
arrival points: shared AP inbox, personal inboxes, paper with deliveries
0
tracker of record. The spreadsheet covers roughly half of invoices
12 hrs
per week of office-manager invoice archaeology: finding, matching, chasing, re-keying
1
owner reconciliation weekend per month (6-8 hours), with no reliable answer at the end
Executive finding
This is not an accounting problem. It is an arrival-capture and tracking problem.
The accounting software does its job. It ledgers what it is told. The failure sits upstream: invoices enter the business through three or more doors, nothing logs what arrived, and no single tracker holds status, owner, or due date. Every downstream symptom follows from that.
When a late notice arrives and nobody can prove the original was entered, the safe move is to pay again. When credits live in email threads, they expire. When nobody watches discount windows, they close. The team is not careless. The flow has no control point.
"We think we are paying some things twice, and vendors keep calling about invoices we never saw."
The presenting problem, in the client's words
Reported symptoms
What the team already knows is happening
Invoices arrive in 3+ placesShared inbox, personal inboxes, paper with deliveries. Nobody can say what came in this week.
Spreadsheet covers roughly halfIt answers questions it was never told about.
Duplicates paid to be safeReal money out the door. Recovery depends on vendor honesty.
Credits stuck in threadsShortage claims and credits expire unclaimed.
Discount windows passStanding 1-2% terms from 14 vendors, rarely captured.
Month-end mystery paymentsThe bookkeeper finds problems after they are paid.
Current-state swimlane
One invoice crosses seven lanes and never gets a status
Follow a single supplier invoice through the current flow. At no step does the business record that it arrived, who owns it, or what state it is in. The five failure labels below mark where the flow loses control.
No arrival captureDuplicate riskOwnership gapMoney leakEscalation failure
Lane / Step
1 Arrival
2 Forward
3 Entry
4 Tracker
5 Duplicate
6 Paid twice
7 Credits
8 Discounts
9 Month-end
10 Binder weekend
Vendor
Sends the invoice
By email to the shared AP inbox, to someone's personal inbox, or on paper with the delivery.
Sends a duplicate with a late notice
The vendor cannot tell if the first copy was received. Neither can the client.
Duplicate risk
Issues credits and shortage claims
They arrive as replies buried inside old email threads.
Offers early-pay terms
Discount windows are days wide and close quietly.
Calls about invoices never seen
Vendor relationships absorb the confusion.
No arrival capture
AP inbox
Some invoices land here. Not all.
No log of what arrived this week. Nobody can say what came in.
No arrival capture
Duplicate lands next to the original. Maybe.
The inbox cannot say whether the first copy was ever entered.
Duplicate risk
Credits expire in threads
No claim log, no expiry dates, no owner. Most expire unclaimed.
Money leak
Office manager
Forwards it to herself
To deal with later. AP is one of her six jobs.
No arrival capture
Keys invoices in batches
When there is time. No consistent arrival log exists to work from.
Queues the payment again
Paying twice feels safer than a vendor hold.
Duplicate risk
Accounting software
Entry happens eventually
The ledger records what it is told, when it is told. It cannot see what never reached it.
Second payment posts clean
Nothing compares vendor, invoice number, and amount at entry.
Money leak
Spreadsheet
Updated for roughly half of invoices
No status, no owner, no due date discipline. It is a partial memory, not a tracker.
Ownership gap
Discount windows pass unnoticed
Standing 1-2% terms from 14 vendors. Nothing watches the calendar.
Money leak
Bookkeeper
Finds mystery payments at month-end
In the office 3 days a week. Reconciles against statements and finds the damage after it is paid.
Ownership gap
Owner
Signs the second check
Nothing on the check says this vendor was already paid.
Money leak
Loses a weekend to the binder
6-8 hours with the binder, the inbox, and the spreadsheet. Still cannot say what is outstanding.
Escalation failure
The leak, itemized (current state)
Four ways money leaves without a decision being made
Leak category
Where it starts
Why it persists
Duplicate payments
A late notice arrives and nobody can prove the original was entered or paid.
Paying twice feels safer than a vendor hold. Recovery then depends on vendor honesty.
Expiring credits and shortage claims
Credits live as replies inside email threads, not in any log.
No expiry dates, no owner, no follow-up trigger. Most expire unclaimed.
Missed early-pay discounts
14 vendors carry standing 1-2% terms.
Nothing watches the windows. They pass unnoticed and the full price gets paid.
Freight and rate errors
Double-billed freight and rate mistakes ride in on ordinary-looking invoices.
Nothing compares the invoice against the PO or the agreed rate at entry.
Dollar amounts for each category are quantified in the 60-day catch log, the companion exhibit to this one. This page maps the mechanisms; that page shows what they cost.
What a controlled AP flow requires
One capture point. One tracker of record. One cadence.
One capture point
Every arriving invoice gets logged the same day, no matter which door it came through. Arrival becomes a fact, not a memory.
One tracker of record
Every invoice carries a status, an owner, a due date, and a discount window. Duplicates get flagged before payment, not found after.
One cadence
A short weekly AP review runs off the tracker. The owner reads a one-page position instead of rebuilding it from a binder.
Next exhibit: the system design. The tracker of record, its statuses and owner rules, the duplicate checks at entry, and the weekly cadence that replaces the reconciliation weekend.