Yes. We establish bidirectional synchronization so that every completed web order instantly generates a certified invoice with its official QR code in your invoicing program and makes the PDF downloadable in the customer portal.
ECOMMERCE & ERP CONNECTIVITY · SANLÚCAR
We integrate invoicing with your entire business to eliminate duplicate manual work
Migrating or updating your invoicing software fulfills a regulatory requirement, but it risks multiplying manual work if left disconnected from your web shop, CRM, ERP, or POS. We build clean API integrations so data flows once and every platform receives exact data.
PRACTICAL CONNECTIVITY
Core invoicing integration workflows
We connect the business tools you already use so data travels smoothly without human intervention.
ONLINE STORE
Ecommerce → Invoicing
Customers purchase on WooCommerce or Shopify and certified invoices with tax QR codes are generated and emailed instantly.
SALES PIPELINE
CRM → Quote → Invoice
Once a client accepts a commercial quote in your CRM, the legal sales invoice is generated without retyping customer details.
WAREHOUSE
ERP → Invoicing & Inventory
Sync delivery notes, keep real-time warehouse stock updated across channels, and automate periodic consolidated billing.
RETAIL STORE
Counter POS → Invoicing
Consolidate cash register sales and ecommerce purchases under one synchronized invoice ledger, avoiding end-of-day discrepancies.
ACCOUNTING
Documents → Bookkeeping
Automated monthly export of issued and received invoice ledgers directly to your tax advisor without disorganized email chains.
AUDIT
Traceability & API Auditing
Full audit logging of originating sources for every entry, coupled with immediate alerts if an API endpoint stumbles.
INTEGRATION ARCHITECTURE
Three core pillars of reliable invoicing integrations
Strict engineering standards ensuring no transaction is ever duplicated or lost.
AUTHORITY
1. Single source of truth per entity
We define exactly which platform governs customer data, catalogs, prices, and stock to prevent accidental overwrites.
Consulting
Architecture
AUDIT
2. Duplicate invoice prevention
We build idempotency protocols: if a payment gateway dispatches duplicate webhooks, only one legal certified invoice is produced.
Automation
Idempotency
SEPARATION
3. Integration and SIF are distinct layers
The integration layer carries payloads; certified SIF billing software remains legally responsible for hashes and chain logs.
SIF Software
API Layers
+100%
Automated issuance with zero manual discrepancies
ZERO REPEATED WORK
Connected invoicing: data flows seamlessly to where it belongs
We connect your web shop, ERP, and VeriFactu-adapted billing platform so every sale generates an official QR invoice instantly without human intervention.
We engineer custom API connectors from Sanlúcar de Barrameda with end-to-end traceability guarantees.
Request billing integrationRESOLVED QUESTIONS
Frequently asked questions about invoicing integrations
We answer your questions about online stores, inventory, and compliance regulations.
No. Integrations solely transfer structured data across applications. The destination invoicing software itself (SIF) must be certified by its manufacturer to meet AEAT regulatory requirements.
Yes. We build bidirectional catalog synchronization: whenever a price changes or inventory is sold in a physical retail store, your online store updates inventory figures automatically.