Electronic invoicing (SIFEN) is the SET system for issuing digital receipts with tax validity. It replaces paper invoices and is mandatory for many taxpayers in Paraguay. Before configuring in Focal Point, you need: to be enabled in SIFEN by SET / digital certificate (.pfx or .p12 file) / Taxpayer Security Code (CSC) / assigned electronic stamp. If you don't have these, consult your accountant or contact SET directly.
Access configuration
Go to Configuration → Electronic Billing
Taxpayer data
Enter (they must match your SET registration):
RUC — Your taxpayer number
Business Name — Exact legal name
Stamp — Number assigned by SET
Upload digital certificate
The certificate is your signature for electronic documents:
Click Upload certificate
Select the .pfx or .p12 file
Enter the certificate password
The system verifies that it is valid
⚠️ Store the certificate and password in a safe place. The certificate expires — note the expiration date.
Configure CSC
The Taxpayer Security Code is provided by SET:
Enter the CSC ID
Enter the CSC (alphanumeric code)
Save
Environment
Development/Test — For tests with no tax validity
Production — Real invoices with legal validity
💡 Start in development / test that everything works / then switch to production.
Test the configuration
Before issuing real invoices:
Make sure you are in Development environment
Create a test sale
Generate an electronic invoice
Verify that the status is Approved
Review the generated XML and PDF
If it works, switch to Production.
Types of electronic documents
Electronic invoice (FE) — Sales with tax credit
Final consumer invoice (FC) — Sales without tax credit
Credit note (NC) — Cancellations and returns
Debit note (ND) — Adjustments in favor of the seller
Common issues
Invalid certificate → Check that the file is .pfx or .p12 / confirm that the password is correct / the certificate may have expired.
Connection error with SET → Check your internet connection / the SET service may be temporarily down / try again in a few minutes.
RUC does not match → The data in Focal Point must be EXACTLY the same as SET's. Use the RUC certificate as a reference.
Expired stamp → Renew your stamp at SET and update the number in Configuration.
Renew certificate
Certificates expire (generally every 2 years):
Get the new certificate from SET
Go to Configuration → Electronic Billing
Click Change certificate
Upload the new file and password