How do approval chains handle multiple legal entities with different sign-off limits?

Each entity gets its own delegation-of-authority table on the canvas — amount and cost center are checked against that entity's thresholds, so a $5,000 invoice can auto-approve for one entity and require the controller for another.

What actually stops a bill from paying itself before anyone signs off?

Payment is a separate step that sits after the approval wait in the run — it can't execute until that wait resolves to "approved," so nothing pays from a draft extraction or a stalled approval.

How is a vendor's bank-account change handled, given invoice fraud risk?

A changed bank account on the vendor record freezes payment automatically. It doesn't clear from a reply to the email that requested the change — AP has to re-verify with the vendor directly, by phone, before payment resumes.

Can the workflow catch a duplicate invoice from a vendor who resends because they think the first one was lost?

Yes. New invoices are checked against the vendor's recent invoice history — same invoice number or same amount within a short window flags a likely duplicate before a second bill is created.

How do we capture early-payment discounts without AP tracking every vendor's terms by hand?

The payment step checks whether the invoice still falls inside its discount window (for example 2/10 net 30) and can move the payment date up to capture it, instead of relying on AP remembering each vendor's terms.

What does an auditor actually see when they ask for proof an invoice was properly approved?

A per-invoice run history: when it arrived, what the 3-way match found, who approved it and when, and when and how it was paid — exported by invoice ID instead of reconstructed from email and memory.

Where should an AP team start?

Clone the intake-and-3-way-match workflow first and connect your PO/receiving system and Bill.com or QuickBooks — that's the workflow the approval routing and audit trail both depend on.

INVOICE APPROVALS

From inbox to paid — with approvers in the loop

AP lives in email threads: intake, manager sign-off, payment, and audit scattered across tools. WEXTL chains those steps on a canvas — extract invoices, route by policy, pay vendors, and log every handoff.

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Deploys this workflow into your workspace — you'll connect your own accounts.

AI-assisted invoice intake from email to bill creation

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23: invoices in the AP inbox before 9am

3: separate approval chains, one per legal entity

4 days: a six-figure invoice sits with an absent approver

* Illustrative example, not measured customer data.

Smart intakeAI reads invoice emails and creates structured bills — humans only for exceptions.

Policy routingAmount and vendor rules decide which approver gets the ping.

Payment executionApproved bills trigger payment and ledger rows in the same run.

Audit packWeekly loops append approval history to sheets and BI.

AP from intake to audit

Invoices from email to bill

Watch AP inbox, extract fields with AI, create bills, notify finance.

Trigger — a new invoice arrives as an email attachment, a forwarded thread, or a PDF dropped into a shared Drive folder.
Information collected — vendor name, invoice number, amount, line items, PO reference (if any), and due date.
Connected applications — Gmail or Microsoft Outlook for the inbox, Google Drive for dropped or scanned PDFs, Bill.com or QuickBooks for the bill record.
Decision logic — runs a 3-way match: the extracted invoice is checked against the referenced PO and the recorded receipt for quantity and price agreement before a bill is created.
AI step — extracts vendor, invoice number, amount, line items, and PO reference from the document or email body.
Human approval — a failed match, a missing PO, or low-confidence extraction holds the invoice for an AP clerk to confirm before any bill posts.
Actions — creates the bill in Bill.com or QuickBooks, attaches the source PDF, and tags the GL code.
Exception handling — a duplicate invoice number or amount from the same vendor is flagged before creation, not discovered after payment.

AI-assisted invoice intake from email to bill creation

What AP actually fights every close

On a bad Monday, twenty-three invoices land in the shared AP inbox before 9am — six as PDF attachments, four forwarded from someone else's inbox, the rest as portal downloads nobody remembers logging into. Reading them is the easy part.

A vendor resends an invoice because they think the first one got lost — now two bills exist for one shipment. GL coding happens from memory, not a rule. And a $40,000 invoice can sit for four days if the one person allowed to sign it is on a plane, because three different legal entities each run their own approval chain with no delegate on file.

Duplicate resends
A vendor resends because payment feels slow; nobody notices until two bills exist for one shipment.
The absent approver
A six-figure invoice sits for days because the one person who can sign it is out, with no delegate on file.
GL coding by memory
No rule decides the cost center — just whoever's been here long enough to remember how it was coded last time.

WEXTL doesn't approve invoices or decide who gets paid — it extracts, matches, and routes so the people with signing authority spend their time deciding, not chasing paperwork.

Example: automate invoice intake and 3-way match

A concrete run, start to finish — the kind of intake workflow an AP team clones from the template library and points at its own inbox and PO system.

Trigger: an invoice arrives — an email attachment, a forwarded thread, or a PDF dropped into a shared Drive folder.

WEXTL checks: the referenced PO for ordered items and price, the receiving record for whether goods or services were marked received, and the vendor's recent invoice history for a possible duplicate — before trusting the extraction enough to create a bill.

Human judgment

A failed match, a missing PO, or a possible duplicate never gets auto-created — it waits for an AP clerk to confirm the fields or track down the PO before a bill exists at all.

Step 1

1. Invoice arrives

An email attachment, a forwarded thread, or a dropped PDF starts the run.

Step 2

2. Extract the fields

AI reads vendor, invoice number, amount, line items, and any PO reference.

Step 3

3. Look up the PO and confirm the receipt

Checks the referenced PO for ordered items and price, and whether goods or services were marked received.

Step 4

4. Run the 3-way match

PO, receipt, and invoice have to agree on quantity and price before the match passes.

Step 5

5. Flag mismatches and duplicates

A price or quantity variance, no PO on file, or a possible duplicate routes to AP instead of auto-creating the bill.

Step 6

6. Create the bill and log the intake

A matched, non-duplicate invoice becomes a bill with the GL code attached, and every field and match result is recorded.

A matched invoice becomes a bill that needs sign-off, and the workflow looks up who can approve what amount for that entity.

Under the auto-approve floor posts straight through; above it goes to the named approver for that band.

A new vendor, a changed bank account, or an unusual price forces manual review regardless of amount.

Posts the summary to Teams or Slack, or email, depending on how that approver works.

The run pauses until someone approves or rejects; no response inside the window forwards to the approver's named delegate.

Approver, timestamp, and decision are logged against the invoice before the run continues.

Example: automate approval routing against a delegation-of-authority matrix

The same discipline, applied to sign-off: route by who is actually allowed to approve what, for which entity, and escalate when they don't answer.

Trigger: a bill is created and needs sign-off before it moves to payment.

WEXTL checks: the DoA table for that legal entity, vendor risk flags (new vendor, changed bank account, price far above history), and how long the current approver has been waiting.

Human judgment

Every approval above the auto-approve floor is a real person's decision, not a rule guessing on their behalf — the workflow only decides who gets asked, and how long to wait before asking someone else.

Who invoice approval automation is for

Not every AP function needs this on day one. It's built for the parts of the job that repeat across a lot of invoices, a lot of approvers, or a lot of entities.

AP specialists processing high invoice volume
— Enough invoices a month that manual PDF intake is the bottleneck, not the approvals.
Controllers running multi-entity approval chains
— Different DoA thresholds per legal entity or subsidiary, applied by rule instead of memory.
Bookkeepers at small finance teams without dedicated AP staff
— One person covering intake, approval nudges, and payment with no backup.
Procurement or finance ops enforcing 3-way match
— PO, receipt, and invoice have to agree before anything gets paid — and someone has to prove it.
CFOs who need an audit-ready trail
— Evidence an invoice was matched, approved, and paid in the right order, without asking AP to rebuild it every quarter.
Teams moving off PDFs and spreadsheets
— Replacing a shared inbox and a tracking sheet with real approval gates and a logged history.

Paid without a chase, logged without a scramble

An approved bill still sits until someone remembers to push payment, and the ledger update lags behind by however long that takes.

On approval, the payment fires, the ledger updates, and the remittance goes out — in the same run, not a follow-up task someone has to remember.

Payment on approval
Fires the moment the bill clears its last required sign-off, not whenever someone gets to it.
Ledger row, same run
GL entry lands with the payment instead of a separate reconciliation pass.
Remittance sent
The vendor gets a confirmation without AP writing it by hand.

Connect the tools your AP process already runs on

You don't get to pick a clean-slate AP stack. The bill system, the inbox, and the approvers' chat tool are fixed — whatever you automate has to meet them where they are.

These are the integrations most invoice-approval workflows actually use. An HTTP step reaches anything else with an API.

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100+ apps for Invoice approvals

Integrate Invoice approvals workflows with the tools your team already uses.

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Invoice approvals, by hand vs. with WEXTL

Task	By hand	With WEXTL
Invoice intake	Manual PDF upload	Supported
Approver routing	Email forwards	Policy branches with waits
Payment	Separate treasury process	Supported
Audit trail	Screenshots and spreadsheets	Run logs plus scheduled audit pack

Frequently asked questions

The invoice is checked against the referenced PO (ordered items and price) and the receiving record (was it actually received) before a bill is created. A quantity or price mismatch, or no PO on file, holds the invoice for AP to review instead of auto-creating a bill from the extraction alone.

Start automatingDrop this workflow into your WEXTL workspace and connect your own accounts.

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From inbox to paid — with approvers in the loop

Invoice approvals automation, at a glance

AP from intake to audit

Invoices from email to bill

What AP actually fights every close

Duplicate resends

The absent approver

GL coding by memory

Example: automate invoice intake and 3-way match

1. Invoice arrives

2. Extract the fields

3. Look up the PO and confirm the receipt

4. Run the 3-way match

5. Flag mismatches and duplicates

6. Create the bill and log the intake

Example: automate approval routing against a delegation-of-authority matrix

Who invoice approval automation is for

AP specialists processing high invoice volume

Controllers running multi-entity approval chains

Bookkeepers at small finance teams without dedicated AP staff

Procurement or finance ops enforcing 3-way match

CFOs who need an audit-ready trail

Teams moving off PDFs and spreadsheets

Paid without a chase, logged without a scramble

Payment on approval

Ledger row, same run

Remittance sent