Fazeshift vs BilltrustNot every payment comes through your portal. Your AR software should handle the ones that don’t.
But in most B2B businesses, much of the cash still arrives outside any portal: checks through the lockbox, ACH and wires with the remittance in a separate email, virtual cards, payments against a statement balance, and short pays with no explanation. That’s where the manual work collects.
Fazeshift is AI-native and built for that work. It connects context across your ERP, banks, emails, invoices and customer portals to apply the payments that don’t match themselves, understand why invoices aren’t paid, and execute the next step.
AI-native execution for complex B2B order-to-cash.
Fazeshift vs Billtrust, in short
Fazeshift is an AI-native order-to-cash platform, including a customer payment portal, built for the work that doesn’t follow the happy path: payments that arrive outside a portal, remittance stuck in emails and PDFs, lump sums with no remittance, short pays, disputes and the AR inbox. Billtrust is an established invoice-to-cash platform with deep roots in invoice delivery and B2B payments, and it has expanded into cash application, collections, credit and AI capabilities. The meaningful difference is how much of that exception work your team still does by hand.
From the Fazeshift team · Updated November 2, 2026
The clean payments were never the problem
Payments made through a portal, with the invoice numbers attached, are the easy ones to match. Most AR platforms handle them well.
The work is in everything else. A customer pays a statement total without sending the statement back. A lockbox check covers forty invoices across three accounts. An ACH arrives with the remittance in a separate email, or in the customer’s AP portal. A virtual card arrives by email and has to be processed and posted. A short pay arrives with a reason code, or none at all.
Each of those lands in an exception queue, where someone researches it, decides where the cash goes, and posts it to the ERP by hand. And the same pattern repeats beyond cash application:
- Collections run from an aging report, with the same reminder going to every overdue account.
- Disputes and deductions wait for someone to read the email that explains them.
- Large customers require invoices to be submitted, tracked and corrected in their own AP portals.
- Customers still email for statements, invoice copies, W-9s and PO matches, even with a portal in place.
A high match rate on the clean payments can hide a lot of manual work on the rest.
Fazeshift is built for the payments, emails and exceptions that don’t fit the happy path, because that’s where your team’s time goes.
End-to-end order-to-cash. Built for every way your customers pay.
Your customers won’t all pay the same way, and they won’t all use your portal. Fazeshift is designed for that reality, connecting the payment, the remittance, the invoice and the conversation wherever each one lives.
Cash application for every payment method
Match and apply lockbox checks, ACH, wires, virtual cards and card payments, not just portal payments. Capture the card details from single-use virtual cards that arrive by email. Read check images, multi-page remittance stubs, emailed remittance and portal downloads, and handle lump-sum payments with no remittance, consolidated payments, parent-child accounts, short pays and deductions, with configurable review before anything posts to your ERP.
Invoices into your customers’ AP portals
Submit invoices into the AP portals your customers require, including Coupa, SAP Ariba and ServiceChannel. Track approval, catch rejections with the reason, fix what can be fixed and resubmit, and retrieve remittance from those portals, so the invoice your customer needs is the one in their system.
Collections that address why customers haven’t paid
Fazeshift connects aging balances with payment history, customer conversations, disputes and operational context to understand what is preventing payment and initiate the right next action. A customer waiting on a corrected invoice needs a different workflow than one who has broken a promise to pay.
AI-powered AR inbox and dispute resolution
Customer emails often explain why cash is delayed. Fazeshift reads them, recognizes disputes, deductions, payment commitments and requests for statements, invoice copies or W-9s, and answers or routes them. Replies stay in review or send on their own, set per scenario.
A customer portal and credit, connected
Give customers a branded portal with ACH, card, multi-invoice payment, autopay and payment on account, connected to the rest of the AR workflow. Monitor credit with payment behavior and external risk data, so credit limits and collection priorities change when a customer’s risk does.
One connected platform. Every payment method. AI-native execution across order-to-cash.
AI that understands the context. Then does the work.
A payment references a PO instead of an invoice. The remittance is in an inbox. A customer paid the statement, minus a credit they think they’re owed. Someone still has to investigate what happened, decide on the right action, coordinate with the right people and resolve the issue.
Fazeshift gives AI agents access to the relevant context across your systems so they can help execute that work.
Connect the context
Your ERP knows what was billed. Your bank and lockbox know what arrived. Your inbox holds promises, disputes and remittance. Customer AP portals hold invoice status and payment detail. Fazeshift connects those signals, giving agents the information an experienced AR analyst would need.
Identify the root cause
Understand why a payment doesn’t match or why an invoice hasn’t been paid. Distinguish a lump sum from a duplicate, a deduction from a dispute, a missing PO from a true collections issue. Prioritize by the reason cash is stuck, not just the age of the balance.
Execute the next action
Retrieve remittance, propose and apply matches, draft or send communications under configured controls, submit or correct an invoice in a customer’s AP portal, route approvals, and prepare the right ERP posting. Move the issue toward resolution instead of adding it to a queue.
Close the loop
Track what happened, who was involved, what action was taken and what remains unresolved. Keep human review, approval controls and auditable records, and learn from how your team resolves recurring exceptions.
The difference is moving from visibility into the problem to execution of the solution.
Five AR problems that never touch your portal
Matching a clean portal payment is table stakes. Here’s how Fazeshift handles the payments and exceptions that land in the queue instead.
A lump-sum payment arrives with no remittance
The total is right. The detail isn’t there.
A customer pays a round-looking total by ACH, with nothing in the bank memo but a company name. No remittance, no invoice list. Somewhere in their open invoices is the combination they meant to pay, and someone has to find it before the cash can be applied.
How Fazeshift helps
Fazeshift uses any invoice numbers in the bank memo, then searches the customer’s open invoices for the combination that adds up to the payment, and proposes the application for review. Your over- and underpayment rules handle small differences, and anything that doesn’t tie out goes to your team with the candidate invoices in front of them.
Business impact: Fewer payments sitting in unapplied cash, less time adding up invoices by hand, and faster posting.
One check covers dozens of invoices across several accounts
The money is in the lockbox. The answer is in the stub.
A parent company sends one check for its branches, with several pages of remittance listing POs, ship-to accounts and invoice numbers in its own format. Matching it means reading every line, mapping each reference to the right account, and posting each one.
How Fazeshift helps
Fazeshift reads the check image and remittance stub, maps the customer’s references to your invoices and accounts using entity relationships and payment history, and prepares the line-by-line application for review and posting to your ERP.
Business impact: Faster lockbox processing, lower unapplied cash, and fewer manual lookups across accounts.
An ACH or virtual card arrives without its remittance
The money arrived. The remittance didn’t.
A customer pays by ACH and emails the remittance separately, or posts it only in its AP portal. Another sends a single-use virtual card by email, with the card details and invoice list in the message. The deposit sits unapplied while someone hunts for the detail.
How Fazeshift helps
Fazeshift recognizes virtual card emails and captures the card details, pulls remittance from your inbox and from customers’ AP portals, links it to the right payment, and moves the payment toward matching. When the detail truly is missing, it sends the customer a specific request for exactly what’s needed.
Business impact: Less portal hopping, fewer unidentified deposits, and a shorter gap between cash received and cash posted.
A customer deducts for a return or pricing issue
The payment is short. The reason matters.
A customer pays $18,250 against a $19,000 invoice and notes “damaged goods” on the remittance. Is there a return authorization? Was a credit already issued? Is this deduction valid under the customer’s terms? Someone has to find out before the balance can be cleared.
How Fazeshift helps
Fazeshift reads the remittance and the customer’s note, matches any credit memo the customer names, and applies your write-off thresholds to small differences. The rest is held for your team with the note, the invoice lines and the customer’s history in front of them, and a credit memo can be created right from the payment.
Business impact: Faster deduction resolution, fewer small balances left open, and less time spent investigating short payments.
Customers email for what they could find in the portal
The portal is there. They still write in.
One customer wants copies of last month’s invoices. Another wants a statement with a running balance. A third needs a W-9 before their AP team will release payment. Each request lands in a shared inbox, where someone finds the document, attaches it and replies, while the invoice keeps aging.
How Fazeshift helps
Fazeshift reads the request, finds the invoice, statement or document, and drafts or sends the reply with it attached, set per scenario. When the email reveals a dispute or a promise to pay, it updates the account, so collections follows up on the right thing.
Business impact: Faster answers for customers, fewer hours in the shared inbox, and fewer invoices waiting on a document.
An exception shouldn’t become another ticket in a queue. It should become a workflow with a reason, an owner, a next action, and a path to resolution.
A different model for deploying AI
AI doesn’t deliver value just because someone turns it on
Deploying AI into finance operations isn’t the same as installing another software tool. The technology needs to understand your systems, customer-specific processes, business rules, and the exceptions your team has learned to navigate over years.
That’s why Fazeshift combines an AI-native platform with a U.S.-based team providing technical deployment expertise, finance-workflow strategy and ongoing support. We don’t simply configure a platform and hand it back. We work with your team to understand how the business operates, deploy AI into real workflows, measure the results, and keep improving execution.
Forward-deployed engineers
Technical specialists who connect your existing systems, build integrations, and translate complex data and operational requirements into working AI-powered processes.
AI deployment strategists
Finance and operations experts who learn how your team works, identify the root causes behind exceptions, map business-specific processes, and prioritize the opportunities with the greatest impact.
Ongoing support and optimization
A continuing partnership focused on adoption, exception handling, workflow improvements and measurable business outcomes as your business evolves.
The goal isn’t simply to go live. It’s to make AI deliver meaningful results in your actual finance operation.
Fazeshift vs Billtrust: what to actually compare
Billtrust offers invoice delivery, B2B payments, cash application, collections, credit and AI capabilities. Fazeshift combines a customer payment portal with AI-native execution across the broader order-to-cash lifecycle. Both can automate important AR activities. The meaningful comparison is what happens to the payments and exceptions that don’t follow the expected path.
- When a payment doesn’t come through your portal
- Ask: What share of lockbox checks, ACH, wires and virtual cards is applied automatically, measured separately from portal payments? What happens to the rest, and who works it?
- When a payment arrives with no remittance
- Ask: Can the platform work out which open invoices a lump-sum payment covers when the customer sends no remittance? Who reviews the proposed match, and how long does the cash sit unapplied?
- When matching needs to change
- Ask: As your customers, remittance formats and exceptions change, how is matching tuned to them? Who does that work, and how quickly do changes reach production?
- When an invoice is overdue or disputed
- Ask: Does the platform simply identify the balance and generate follow-up, or can it also determine why payment is delayed, retrieve the relevant context, and initiate the action needed to resolve the issue?
- When customers email instead of using the portal
- Ask: How much of the AR inbox, from invoice copies and statements to W-9s and payment questions, does the platform answer on its own? Does what it learns from those emails reach collections and cash application?
- When you measure the outcome
- Ask: How many exceptions are fully resolved? How many analyst touches are removed? How quickly is cash applied? What measurable impact does the platform have on DSO, unapplied cash and AR team capacity?
Don’t compare match rates on the clean payments. Compare how much of the rest actually gets resolved.
Measure the impact, not just the automation rate
Fewer unresolved issues. Faster cash. More capacity to grow.
A match rate on the clean payments tells only part of the story. Measure unapplied cash, time to post across every payment method, DSO and the hours you get back.
Frequently asked questions
Fazeshift and Billtrust: the questions buyers ask.
Already leaning toward Fazeshift? See what switching from Billtrust involves.
Details about Billtrust are from its website, checked November 2, 2026.
Your team already knows how to resolve the exceptions. Now give AI the context to help do it.
Bring a week of payments that didn’t come through your portal: the lockbox checks, lump-sum payments, deductions and emailed remittance. See how Fazeshift works through them.