Native Integration with Rillet: AI-Native AR on Top of an AI-Native ERP

How the Rillet + Monk Integration Powers Invoice to Cash
Your Ledger Stays the System of Record: Monk does not replace Rillet. Invoices, customers and balances keep living in Rillet, and Monk layers AI-native collections and cash application on top.
ERP Data Sync: Connect your Rillet environment and your ERP data syncs into Monk. No CSV exports and no overnight batch files.
Two AI-Native Systems, One Stack: Teams pick Rillet to get off a legacy ledger. Monk is the same decision for receivables, so the close and the collections side of the month both run on current software.
Reply-Aware Collections: Julia, the Monk agent for Intelligent Collections, reads inbound replies and responds to what the customer said rather than advancing a fixed dunning sequence. 90% of invoices are resolved without escalation.
Cash Application: Incoming payments are matched to open invoices automatically, at an 80% match rate rising to 95% with suggested matching rules that your team owns rather than raising a ticket to change.
What Makes Monk Different
AP Portal Submission: Monk submits invoices into more than 600 corporate accounts payable portals and uploads 87% of them autonomously. Across the $2B+ in receivables Monk manages, 92% of enterprise invoices have to be submitted through a customer's portal rather than paid from an emailed invoice. This is the step most receivables tooling leaves to a person.
Rules You Control: Your team configures matching rules and collections playbooks directly, without raising a request with vendor support.
Fast to Live: Monk goes live in one to three days and is SOC 2 Type II compliant.
Common Use Cases We Support
- High-growth SaaS companies that moved from QuickBooks or NetSuite to Rillet
- Finance teams of one to five covering close and collections together
- Usage-based and hybrid billing models with variable invoice amounts
- Companies selling into enterprise that submit invoices through customer AP portals
- Controllers replacing spreadsheet-driven AR follow-up
Answers to Questions You May Have
Does Monk replace Rillet?
No. Rillet stays your general ledger. Monk connects to it, reads receivables data, and runs the collections and cash work that is manual today.
What data comes across?
Your Rillet ERP data syncs into Monk.
Why use two systems instead of one?
Rillet is built for the ledger and the close. Monk is built for getting the invoice paid, including AP portal submission and reply-aware follow-up.
Do we need engineering time to connect them?
No. Monk goes live in one to three days and your team configures the rules directly.
How long does it take to go live?
One to three days. Monk manages $2B+ in receivables and is SOC 2 Type II compliant.









.avif)