Floris de Vries

Configure your business details and VAT settings.

Company Settings

How to complete Company Settings so invoices include your business information.

Set up your company details

How to enter and validate your business VAT number.

VAT number and validation

Choose how customer VAT numbers are read when an invoice is created.

Where the app finds customer VAT numbers

B2B & Wholesale

B2B Pricing

Bulk forms

Tax and currency

EU Tax exemption

Options Price Calculator

Getting Started

Follow the steps below to install the Options Price Calculator app in your Shopify store.

How to install the app

How to Add the Extension to the Product Page

Form Fields

Text Field

Number Input

Dropdown

Radio Buttons

Checkbox

Rich Text

Date Picker

Swatch

File Upload

Calculation display (Premium)

Color Picker

Font Picker (Premium)

Divider

Textarea

The Calculation / Formula section defines how the final product price is calculated. Using formulas, you can combine customer input, product pricing, and logic to create fully dynamic and flexible price calculations. This step is where all inputs from Step 1 come together.

Calculation / Formula

Calculation & Pricing Overview

Using the Formula Builder

Variables and Field Values

Conditional Pricing (Premium)

Pricing / Formula Examples

Computed properties (custom variables)

Calculator Settings

General

Translations

Linking Products

Linking Products & Variants to Calculators

Bulk Linking & Filtering Calculators

App-wide Settings

Overview

Storefront Theme Bindings

Using the Selector Picker (Pick price & Pick add to cart)

Custom CSS

Server-side price validation (safety feature)

Draft order checkout

Additional

This guide explains where to edit the order confirmation email in Shopify and how to download and use the prepared email template file.

Add product data to order confirmation email

EU Tax Exemption Plus

Installation – Checkout Page

Settings

Add tag to Tax Exempted Orders

This FAQ answers the most common questions about the EU Tax Exemption – Checkout app for Shopify Plus.

Frequently Asked Questions (FAQ)

Help articles for generating Peppol-compliant e-invoices for Belgian orders in Shopify.

EU E-Invoice

Learn what the app does and how to get set up quickly.

A short overview of what the app does today for Belgian e-invoicing.

What is EU E-Invoice?

Follow these steps to generate your first Belgian e-invoice.

Quick start

Common reasons View Invoice and Download XML are greyed out.

Why invoice actions are disabled

Create, view, download, and update e-invoices from your orders.

Orders & Invoices

How to use the Orders page to open invoice previews for Belgian orders.

View and create e-invoices from orders

How to download invoice and credit note files from the Orders page.

Download PDF and XML files

Refresh invoice data and XML when an order or refund changes in Shopify.

Update an invoice after order changes

How credit notes work for Belgian orders with refunds.

Credit notes for refunds

How paid orders trigger automatic invoice creation.

When invoices are created automatically

How can we help you?

Help Center

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Options Price Calculator Roadmap

B2B & Wholesale Roadmap

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