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InvoiceXpress

InvoiceXpress is a popular certified billing platform in Portugal. FaturaSync connects to it via API to create draft invoices automatically.

Setup

You need two things from your InvoiceXpress account:

1. Find your API Key

  1. Log in at invoicexpress.com
  2. Click your account name in the top-right corner
  3. Go to Definições (Settings) → Integrações (Integrations) → API
  4. Your API Key is displayed on this page — copy it

2. Find your Account Subdomain

Your subdomain is the part before .invoicexpress.com in your account URL. For example:

  • URL: https://mycompany.invoicexpress.com → subdomain: mycompany
  • You can see it in your browser's address bar when logged in

Connect to FaturaSync

  1. Go to Settings in FaturaSync
  2. Select InvoiceXpress as your invoicing provider
  3. Paste your API Key
  4. Enter your Subdomain (just the name, not the full URL)
  5. Click Save

How drafts are created

When you click Create Draft in FaturaSync:

  1. FaturaSync sends the booking data to InvoiceXpress via their API
  2. A draft invoice (rascunho) is created in your InvoiceXpress account
  3. The draft includes: client name, service description, amount, and IVA

Finding your drafts in InvoiceXpress

  1. Log in to InvoiceXpress
  2. Go to Documents > Invoices (or Documentos > Faturas)
  3. Filter by Draft status
  4. Your FaturaSync-generated invoices will be there, ready for review

What's included in the draft

Field Value
Client name Guest name from the booking
Description Accommodation service with check-in/check-out dates
Amount Net amount (after commission deduction)
IVA rate Based on your property's location setting
Document type Invoice (Fatura)

Finalizing invoices

After reviewing the draft in InvoiceXpress:

  1. Open the draft document
  2. Verify all details are correct
  3. Click Finalize (Finalizar) to convert it to a final invoice
  4. Optionally send it to the guest by email

Review before finalizing

Once an invoice is finalized in InvoiceXpress, it receives a sequential number and cannot be deleted — only credited. Always review drafts before finalizing.

Troubleshooting

  • "Invalid API key" — Re-copy the key from InvoiceXpress settings, making sure there are no extra spaces
  • "Account not found" — Check your subdomain is correct (just the name, not the full URL)
  • Draft not appearing — Allow a few seconds, then refresh your InvoiceXpress dashboard