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Rillet Use the Rillet integration to:
  • Keep customers in sync across Sequence and Rillet
  • Sync invoices and credit memos in real-time
  • Automatically sync payment statuses from Rillet to Sequence

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Getting started

  • Generate API key
  • Connect
  • Configure integration
In your Rillet account, go to Settings → API Keys and generate a new API key for Sequence.

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Linking customers to Rillet

Before syncing invoices, customers in Sequence must be linked to customers in Rillet. You can link to existing Rillet customers or create new ones directly from Sequence. When customers are linked, a Rillet logo appears next to the customer record in Sequence for easy identification.

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Syncing invoices

When an invoice is finalized in Sequence, it automatically syncs to Rillet with all line items, amounts, and service periods.
If an invoice fails to sync (e.g., unmapped product, unlinked customer), you can manually retry the sync from the invoice page in Sequence.

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Syncing credit notes

When a credit note is finalized in Sequence, it automatically syncs to Rillet as a credit memo. Credit memos include:
  • Reference to the original invoice
  • Credit amount and line items
  • Service period
  • Product references for accurate categorization

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Mapping products to Rillet

Invoice line items in Rillet require a product reference. To ensure successful invoice syncs, map Sequence products to Rillet products.
  • Map product
  • Create product in Rillet
From the Product Catalog in Sequence, select a product and click “Link to Rillet” to map it to an existing Rillet product.

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Product mapping behavior

When syncing invoices:
  • Mapped products: Uses the mapped Rillet product
  • Unmapped products: Automatically creates a new product in Rillet when the invoice is synced
All Sequence products are mapped as fixed products in Rillet.

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Payment status sync

When a payment is recorded in Rillet (e.g., wire transfer, bank payment), Rillet triggers a webhook notification and Sequence automatically marks the corresponding invoice as paid.
Payment status syncs from Rillet to Sequence only. For invoices with a Stripe payment link, Sequence will sync the payment status from Stripe and ignore the payment status in Rillet. You need to reconcile your invoice in Rillet separately in this case.

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Tax handling

Rillet supports flexible tax configuration at both the customer and product level. When syncing invoices from Sequence:
  • Taxed customers: Tax codes are applied based on product tax categories mapped in Sequence
  • Tax exempt customers: No tax is applied to line items
  • Reverse charged customers: Appropriate reverse charge tax codes are applied
You can configure tax code mappings in the Rillet integration settings to ensure accurate tax handling.

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Frequently asked questions

You can view the sync status of invoices and credit notes directly in Sequence. A Rillet logo will appear next to successfully synced invoices, and you can click through to view the invoice in Rillet.
If a sync fails:
  1. Navigate to the invoice or credit note in Sequence
  2. View the error message explaining why the sync failed
  3. Address the issue (e.g., link customer, map product)
  4. Click “Retry sync” to attempt the sync again
Common sync errors include:
  • Customer not linked: Link the customer to a Rillet customer first
  • Product not mapped: Map the product or configure a default product (products will be automatically created if not mapped)
  • Currency mismatch: Ensure the invoice currency matches the customer’s Rillet currency
  • API error: Check your API key is valid and Rillet is accessible
No. If a product isn’t mapped to Rillet, it will be automatically created when the invoice is synced. However, you may want to map products in advance to ensure they use the correct account codes and settings in Rillet.
Multi-currency can be enabled by the Rillet support team in your instance. Once enabled, invoices sync in their original currency, and the currency must match the customer’s configured currency in Rillet.