# CobrarYa and SIFEN — Electronic documents from one register

We build the DE, calculate the CDC, and generate the KuDE with a SIFEN consultation QR. The document is valid when SIFEN approves it.

### Electronic invoicing

### Electronic documents connected to SIFEN

CobrarYa builds the DE (XML), signs it with your certificate, and sends it to SIFEN. We check the status; DNIT validates it, and the document is valid when SIFEN approves it.

### How it works

### From DE to KuDE after SIFEN approval

We build the DE according to the current Technical Manual, sign it with your certificate, and transmit it to SIFEN. We store the CDC and check the status; the KuDE with a SIFEN consultation QR is shared when the status allows it.
- We generate the DE (XML) according to the current Technical Manual and calculate VAT: 10%, 5%, and exempt.
- We sign with the taxpayer’s digital certificate and transmit the DE to SIFEN.
- We check the status and persist the 44-digit CDC.
- We generate the A4 or POS-ticket KuDE with required minimum fields and a fiscal QR for public e-Kuatia / SIFEN lookup by CDC, using the content and size specified in the current manual.
- Show the states Draft, Pending SIFEN, Approved, Rejected, and Contingency where the manual allows it. A rejection stays visible and is not shared as a valid KuDE.
- Share the approved KuDE with its CDC by WhatsApp, PDF, or print. We handle the XML; the certificate and timbrado remain yours.

### RUC and timbrado

You manage the RUC, electronic-invoicer enrollment, and timbrado through Marangatu / DNIT. We guide you.

### DE — Electronic Document

The electronic invoice itself, with the structure SIFEN requires.

### CDC — Control Code

The unique identifier of each document, generated automatically.

### KuDE

The graphic representation of the DE, with a SIFEN consultation QR and the statement “This document is a graphic representation of the DE.” Shared when SIFEN approves.

### CobrarYa connects to SIFEN

We generate the DE, CDC, and KuDE PDF with the SIFEN consultation QR. CobrarYa builds the DE, signs it with your certificate, and sends it to SIFEN. DNIT validates it. The document is valid when SIFEN approves it. e-kuatia’i remains the free option if you only need to invoice.

### Do I need a digital certificate?

Yes. The digital certificate belongs to the taxpayer, and the timbrado is managed through Marangatu / DNIT. We guide you through setup.

### What happens if the internet drops while invoicing?

If the internet drops, you can keep recording sales as internal tickets pending SIFEN. The electronic invoice is sent when the connection returns. It is not a valid electronic document until SIFEN approves it.

### Does the KuDE work as the customer’s receipt?

The KuDE is the graphic representation of the DE and includes a SIFEN consultation QR. Share or print it when the document status allows it.

### What does CobrarYa do with SIFEN?

We build the DE (XML), sign it with your certificate, and send it to SIFEN to check its status. The document is valid when SIFEN approves it. e-kuatia’i is DNIT’s free option if you only need the invoice.

### Invoice with SIFEN, headache-free

---

Fuente / Source: https://www.cobrarya.com.py/en/sifen