Send & verify an e-invoice

Once your settings and data are ready, sending an e-invoice is just submitting a Sales Invoice as normal. Zinye does the rest.

Send it

1. Create a Sales Invoice the usual way — pick the customer, add your items, set quantities and rates.
2. Click Submit.

That’s it. If anything required is missing, Zinye stops you with a clear list (see Required fields). Otherwise, the invoice is sent to NRS in the background.

What happens next

Within a few moments:

• NRS validates and signs the invoice.
• The invoice gets an IRN (Invoice Reference Number), e.g. ACCSINV202600004-B0B17AB7-20260621.
• The NRS e-Invoice status on the invoice moves from Pending → Submitted, and later to Cleared once NRS finishes processing.

You can see the IRN and status in the NRS section of the Sales Invoice. If NRS is briefly busy it returns a “try again later” response, the status shows Auto-Retry, and Zinye re-sends it on its own — you don’t have to do anything. See Statuses & actions for what each badge means and the Nigeria actions menu on a submitted invoice.

Print it — with the QR code

Print the invoice using the Nigeria Sales Invoice print format:

1. Open the invoice and click Print (choose the Nigeria Sales Invoice format if it isn’t already the default).
2. The printout shows a TAX INVOICE with an NRS e-Invoice panel containing:
   • the IRN,
   • the status,
   • a note that it was reported to NRS, and
   • a QR code with “Scan to verify”.

Verify with MBS360

Anyone can confirm the invoice is genuine:

1. Open the MBS360 app on a phone.
2. Scan the QR code on the printed invoice.

Tip

For the QR to scan reliably, print it at a reasonable size — a very small QR on a crowded page can be hard for a phone camera to read. The Nigeria Sales Invoice format already prints it large enough; if you build a custom format, keep the QR at least ~4 cm wide.

Troubleshooting

You see…	What it means	Fix
A clear list of missing fields on Submit	Zinye caught a problem before NRS did	Fix the listed items and submit again. See Required fields.
Status stays Pending, e-invoice shows Failed with an NRS message	NRS rejected something specific	Read the message on the NRS E-Invoice record — it names the exact field (e.g. supplier email, telephone, TIN). Fix it, then use Generate E-Invoice on the invoice to retry.
Printed invoice has no QR	Your Public Key is likely wrong	Re-download crypto_keys.txt and paste the public_key into settings again, carefully.
MBS360 can’t read the QR	It’s printed too small	Print it larger.

For the full list — duplicate IRNs, stuck statuses, “Not Required”, missing Nigeria fields — see Troubleshooting.

Related

• Statuses & actions
• Configure settings
• Prepare your data
• Troubleshooting