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Billing guide availableResearch verified August 28, 2026

Customer.io billing and invoice integration

Billproof does not currently offer direct Customer.io invoice retrieval. You can still build a reviewable record by forwarding invoice email or uploading the original document.

Current Billproof support

What Billproof supports today

Billproof does not currently offer direct Customer.io invoice retrieval. You can still build a reviewable record by forwarding invoice email or uploading the original document.

Document retrievalPartial
NormalizationPartial
Transaction matchingPartial

Invoice retrieval

Where Customer.io provides invoices

Account Settings > Plans & Billing > Billing History.

Ways to retrieve records today

  • Vendor billing portal
  • Email forwarding
  • Manual PDF upload

Access controls

Authentication and permissions

OAuth
Not used for this workflow
API token
Not used for this workflow
Browser session
Required for portal access
Required role
Customer.io Admin

Vendor evidence

Available billing and document data

This table describes data documented by the vendor. It does not imply that Billproof retrieves every field directly.

Billing capabilityVendor availabilityEvidence note
Account discoveryNot documentedNo verified detail is available yet.
Billing historyDocumentedNo verified detail is available yet.
Invoice metadataDocumentedNo verified detail is available yet.
Invoice PDFDocumentedCustomer.io documents a PDF download for each billing period.
Credit notesUnknownNo verified detail is available yet.
Line itemsUnknownNo verified detail is available yet.
Usage dataUnknownNo verified detail is available yet.
SubscriptionsDocumentedNo verified detail is available yet.
Payment methodUnknownNo verified detail is available yet.

Normalized record

Fields Billproof can normalize

  • vendor_name
  • invoice_number
  • invoice_date
  • billing_period
  • plan_name
  • line_items
  • subtotal
  • tax
  • total
  • currency

Known boundaries

Limitations

  • No direct Customer.io billing connection is available in Billproof.
  • The official public documentation confirms admin-only PDF downloads but provides limited detail about missing-document handling.
  • Invoice API availability has not been verified.

Primary evidence

Sources

Last verified August 28, 2026. Vendor interfaces and billing policies can change.

  1. Download your billing invoice ↗official

Status-aware next step

Request this integration

Tell us this workflow matters. We use demand and invoice friction to prioritize connector work.

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