SUMU API Docs

Target documentation for SUMU's e-invoicing API — pick your integration track to get started.

Every Oman e-invoice has to become compliant UBL, reach the buyer over Peppol, and get reported to the Tax Authority. What differs between integrations is who does each job — start by telling us which one you are.

Scenario 1

I run my own ERP

One business, one taxpayer — yours. Plug e-invoicing into software you already have, for invoices you already send.

Start the direct-integration quickstart

Scenario 2

I'm a platform onboarding many businesses

One account, many taxpayers. Bundle Oman e-invoicing into your own product and manage it on behalf of every business you serve.

Start the platform quickstart

Just show me the full API reference · What's actually built today

Explore the API

Taxpayers

Onboard a business and register it on the Peppol network.

Sending

Create invoices, send raw UBL, or validate a document before you do.

Tracking

Follow a document from queued through delivered and tax-reported.

Receiving

Fetch inbound documents, or subscribe with webhooks.

Reference

Errors, rate limits, idempotency, and participant lookup.

Best practices

The checklist for turning a working integration into a production-grade one.