Direct integration
One business, its own ERP, one taxpayer. Use the same API as everyone else, just once.
This track is for a single business running its own ERP that wants Oman e-invoicing for itself — nobody else's invoices, just yours.
You'll use the exact same API as platforms managing many businesses (see
Platform) — you'll just onboard one taxpayer
(yourself) and stop there. The API still talks about "taxpayers" and sender_id even for a single
business, because every SUMU account is shaped that way underneath; it isn't a sign you're in the
wrong place.
Minimal path: create an account → generate an API key → onboard your own business as a taxpayer once → register it on Peppol once → send invoices.
You don't need: webhook scoping by taxpayer, multiple API keys, or anything under Platform in the sidebar — those exist for platforms managing other businesses' invoicing on their behalf.
Full field-by-field detail lives in Taxpayers and Sending — this page stays a quickstart on purpose.