Synthesia's order-to-cash team partnered with Rex to run AR in real time. Rex handles the manual work, pulls fragmented context and routes exceptions to the team. With Rex, AR keeps pace with Synthesia's rapid growth while maintaining a lean team.
A fast-growing AI video platform for enterprise training and communications.
Global750-1,500 employeessynthesia.io
Rex now auto-assigns every AR thread to the right owner, categorises and analyses the case and takes the necessary action to close it, routing exceptions to the owner.
Synthesia is one of the fastest scaling companies in enterprise AI. Nvidia-backed, recently valued at $4 billion and part of the Forbes Cloud 100, Synthesia serves over 90% of the Fortune 100. Synthesia lets enterprise teams turn text into studio-quality video without cameras, crews, or actors.
Its finance team runs accounts receivable across email, Oracle NetSuite, Salesforce and spreadsheets, exactly the kind of high-volume, context-heavy work that traditional automation tools were never built to handle.
Order-to-cash at Synthesia's scale is a full operation. High invoice volume, dozens of external supplier portals, purchase orders that arrive before the paperwork, disputes, remittances, and collections across currencies and customer tiers.
Key facts
One inbox for everything
Synthesia's finance team was scaling fast, and the AR inbox had become the operating system for the business. Customer questions, purchase orders, remittances, disputes, portal issues, and collections follow-ups all landed in one place, at a volume where a single follow-up or customer could slip through.
Context fragmented across systems
Working any one of them meant stitching the picture together by hand across email, NetSuite, and Salesforce, along with the account knowledge and judgment that lived with the team rather than in any system. A purchase order that arrived before its paperwork had to be tracked down, matched in NetSuite, and tied back to a Salesforce opportunity before an invoice could go out.
Portals and rigid reminders
On top of that sat 30 to 40 customer portals, each maintained by hand with its own login, validation rules, and failure modes. Some, like Ariba, could take ten to fifteen minutes per invoice and frequently timed out. NetSuite's scheduled dunning reminders ran on a fixed timeline, chasing customers who had already sent remittance or promised to pay.
“In AR, our two biggest pain points were the inbox and the supplier portals. I was told those two could not be automated.”
Dan KimCFO at SynthesiaRex handles manual AR operations
Synthesia handed manual AR workflows to Rex. Rex runs the work across the inbox, portals, and receivables, while the team stays on the decisions that need judgment.
Context in one place
Rex assembles the full picture for every case, pulling rich context across email, NetSuite, and Salesforce so nothing has to be stitched together by hand. Over time, Rex has also learned how Synthesia's team works, the account details and judgment that used to live only with the people running it, and applies that to the work it does.
“Rex has gotten smarter over time, and looking back from April and May to now, the improvement has been significant. It's figured out that this is how we communicate with our customers.”
Natalia JaffaeDirector of Order to Cash at SynthesiaEvery thread, worked in real time
In the inbox, Rex auto-categorises every thread, identifies the customer, routes the case to the right owner, and drafts the reply with context already attached. Because it runs continuously, replies can go out faster, instead of waiting in a shared inbox, and nothing slips through.
Portals, handled on arrival
Across the 30 to 40 customer portals, Rex pulls purchase orders, prepares submissions, and posts invoices the moment they are ready, so the payment clock starts at once instead of when someone gets to the queue. If an invoice is rejected due to a missing purchase order, Rex writes back to NetSuite to update the invoice and re-submit it.
“Working from one system… it's running over NetSuite, Salesforce, and the AR inbox, and it's just one system.”
Adam PattieGlobal AR Analyst at SynthesiaRex submits invoices to SAP Ariba, Coupa, Tungsten, Tradeshift, and Taulia the moment they are ready, with confirmation numbers to show for it. It has retrieved purchase orders worth over $40M from the same portals.
Rex assembles every case from email, NetSuite, and Salesforce, so no one stitches the picture together by hand. The full customer history is one question away.
The account knowledge and judgment that lived with individual team members now lives in procedures Rex follows. The team can read them, refine them, and audit every action taken under them.
Rex reads, investigates, and proposes an action within a minute of an email arriving, with a reply drafted in Synthesia's voice. The thinking is done before a person opens the case.
Synthesia is extending Rex to intelligent dunning, NetSuite write-back, AP inbox workflows, and cash application.
About Rex
Rex is the AI operations partner for order-to-cash. It runs collections, the AR inbox, supplier portals, and reconciliation on top of your existing ERP, learns your team’s procedures, and records an auditable trace for every action it takes.
Synthesia runs AR operations on Rex. See what Rex could run for your finance team.
Rex plugs into your ERP, inbox, and customer portals. No migration.
Coverage from day one, grounded in your live receivables.
Rex escalates what needs judgment. Everything routine runs on its own.
