An e-NCF is the number on an electronic fiscal receipt, and DGII assigns you the ranges you are allowed to use. Lunix does not invent them. Loading them correctly is what stands between you and a counter that cannot issue a receipt.
- 1
Finish certification first
The Sequences tab is locked until your certification with DGII is complete, because DGII only issues ranges after that. If the tab is locked, the certification is what to go and finish — there is nothing to load yet.
- 2
Open the sequences screen
Go to Settings → e-NCF Sequences. Ranges belong to a location: each branch has its own list, and a range loaded at one branch does nothing for another.
- 3
Add the range exactly as DGII assigned it
Click Add a new range and fill in the document type, the start sequence and the end sequence. Both ends are inclusive. Use exactly what DGII gave you — the sequence numbers are immutable once created, so a typo is not something you edit later.
- 4
Get the expiry date right
Enter the exact date DGII authorized for the range. DGII rejects receipts issued against a wrong date, so this is not a field to approximate. Leave it empty if DGII shows N/A — a Consumer invoice (E32) range, for example, has no expiry.
- 5
Activate it
A range is created inactive. Activate it to start issuing receipts against it — until you do, nothing uses it.
- 6
Understand the document types
You load a range per type, because DGII counts them separately:
- E31 Tax Credit Invoice — sales to businesses with an RNC that need the ITBIS as a tax credit.
- E32 Consumer Invoice — your everyday counter sale.
- E33 Debit Note — adds a charge to an invoice already issued.
- E34 Credit Note — returns, cancellations or discounts on an invoice already issued.
- 7
Watch the remaining count
The fiscal screen shows how many of each document type you have left, or warns that there is no active range. Treat a falling count as a deadline: requesting a new range from DGII takes time you will not have on the day it hits zero.
Pro tip
- Load the credit-note range before you need it. The day you find out it is missing is the day a customer is standing in front of you with a return.
- Check the existing ranges list per location after any change. "No sequence available for this receipt type" at the counter almost always means a range that was never activated, or was loaded at the wrong branch.
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