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Rillet

Monk connects directly to the Rillet Accounting API v4 over HTTPS. The integration supports Rillet organizations with multiple subsidiaries and multi-currency receivables.

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Supported entities

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Authentication

  • A Rillet organization API key is generated in Organization Settings → API Keys and pasted into Monk.
  • Monk stores the key encrypted and sends it as a Bearer token on every request.
  • If the key is revoked or expired, the connection health banner prompts for a replacement key.

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Multi-entity, currency, and parent-child

  • Subsidiaries: A Rillet organization can contain multiple subsidiaries. During setup you select the subsidiary that maps to the current Monk organization. Customers and products are organization-wide; invoices, payments, and credit memos are scoped to the selected subsidiary.
  • Currency: Invoice and payment amounts retain their original ISO currency and exchange rate. Monk does not perform FX conversion; payments are applied in the invoice currency.
  • Customer hierarchy: Rillet does not expose a customer parent/child field, so Monk treats all customers as top-level accounts.

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Configuration options

  • Subsidiary selection: pick the Rillet subsidiary to associate with this Monk org.
  • Payment account: choose the Rillet GL account used for payment transactions.
  • Historical cutover date: limit how far back Monk imports invoices and payments.
  • Auto-import: enable or disable automatic import of new Rillet invoices and customers.

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Sync and reliability

  • Incremental, cursor-based sync using updated.gt timestamps.
  • Periodic full-snapshot reconciliation catches deleted Rillet customers, invoices, and credit memos.
  • Product records are periodically reconciled with a full snapshot because they do not carry a modification timestamp.
  • All monetary values use Rillet’s decimal-string amounts to preserve precision.

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Frequently asked questions

Do I need to install anything in Rillet? No. Rillet is a hosted REST API; the only prerequisite is an organization API key. Can one Monk org sync more than one Rillet subsidiary? One Monk org connects to one subsidiary. Connect additional Monk orgs to sync additional subsidiaries and use Monk’s org hierarchy for roll-up. What happens if a payment is deleted in Rillet? Deletion restores the invoice balance. Monk reconciles the removed payment and reopens the invoice to its prior state.