To configure Comply for compliance with Spain’s Immediate Supply of Information (SII) regulation, follow the steps outlined below:
Step 0. Configure the Fiscal Environment
To ensure proper configuration, you will need to select the following:
1. Application Scope
1.1. Select Spain as your country of operation.
1.2. Choose Not subject under articles 1.3, 3.3, and 5 of the Regulation.
1.3. Select Subject to the SII regime.
2. Tax Regime
Choose the applicable VAT regime for your business (as defined in Spanish Law 37/1992):
General VAT regime
Special scheme for used goods, works of art, antiques, and collectibles
Special scheme for travel agencies
Special scheme for agriculture, livestock, and fishing
Simplified VAT scheme
Special scheme for investment gold
3. Type of Tax
Select the relevant tax type for your activity:
Value-Added Tax (VAT)
IPSI (Tax on Production, Services, and Imports – Ceuta and Melilla)
IGIC (Canary Islands General Indirect Tax)
Step 1. Confirm SII Functionality
Once your fiscal environment is configured, confirm that Comply is operating in SII mode.
Comply provides the following capabilities:
Sequential invoice numbering, printed directly on receipts
Generation of invoice records in the SII-compliant structure
Structured CSV export for manual or third-party submission to the Spanish Tax Agency.
Step 2. Activate Comply in Shopify POS
To allow Comply to register and process your in-store orders, enable the app within Shopify POS:
In Shopify Admin, go to Sales Channels > Point of Sale > Settings
Open POS Apps
Locate Comply POS UI Assistant
Click “Add” to include the app in your Smart Grid and other POS sections
You can also activate it directly by clicking “Activate the app”.
Step 3. Place a Test Order
To verify that your setup is complete and the app has been successfully activated:
Create a test order in Shopify POS (you may simulate a sale for €0)
Comply will automatically validate whether the transaction was correctly processed
If everything is configured correctly, a confirmation screen will appear
If errors are detected, Comply will provide instructions for resolution.
With these three simple steps, Comply will be fully configured and ready to operate under the SII (Immediate Supply of Information) regime.
We recommend reviewing the following articles to better understand how to use Comply at the Point of Sale and how to manage your registered invoices from within the Shopify Admin.