<h1>Prerequisites</h1><ul class="accent-bullets"><li>Business Unit Configuration: Valid company details (VAT, address, legal name) configured in your settings.</li><li>Localization Access (Optional): Required only if you intend to perform self-service text adjustments.</li></ul><hr><h1>How It Works</h1>The Wunder Mobility invoicing engine generates PDF invoices dynamically at the moment of creation. It combines your operator branding, user data, and transactional records into a compliant, structured document.<h2>The Invoice Structure</h2>The standard PDF template is designed to meet general accounting standards and includes four main sections:<ol class="steps-list"><li>Header &amp; Meta Data:<ol class="steps-list"><li>Includes the specific Invoice ID, date, and due date.</li><li>Displays reference numbers such as Rental # or Booking #.</li><li>If applicable, shows Cost Center information and payment method details (e.g., Credit Card brand and last 4 digits).</li></ol></li><li>Customer &amp; Operator Details:<ol class="steps-list"><li>Sender: Your branch legal name, address, VAT ID, and contact info (pulled from your system configuration).</li><li>Recipient: The customer’s name, address, and VAT number.</li></ol></li><li>Line Items &amp; Taxation:<ol class="steps-list"><li>A breakdown of services (rentals, subscriptions, fees).</li><li>Columns for Net Price, Tax Percentage, Tax Amount, and Gross Price.</li><li>A summary block calculating total Net, total Tax, and the final Total Cost.</li></ol></li></ol><ol class="steps-list"><li>Balance Movements (Conditional):<ol class="steps-list"><li>Only visible if the customer is in Balance Mode (Prepaid/Wallet).</li><li>This section details how the total was calculated based on credit usage or wallet deductions.</li><li>It lists specific trip details: Vehicle License Plate, Start/End times, Distance, and any Additions (surcharges or fees).<blockquote>Note: This section is hidden for customers in Invoicing Mode (Postpaid).</blockquote></li></ol></li></ol><h2>Immutable History</h2>The PDF engine generates the file based on the template active at the time of generation.<ul class="accent-bullets"><li>New Invoices: Will reflect any template or text changes immediately upon creation.</li><li>Old Invoices: Retain their original layout and text to ensure a consistent audit trail for accounting. You cannot retroactively change the layout of a PDF that has already been issued.</li></ul><img src="https://uploads.productlane.com/4ec446bbc2c79830e18e893c22d65637.jpeg" data-processed-src="https://uploads.productlane.com/4ec446bbc2c79830e18e893c22d65637.jpeg" data-original-src="https://uploads.productlane.com/ff1e5047bdfa80a800064d6cd4049acb.png"><hr><h1>Step-by-Step Guide</h1><h2>Method 1: Requesting Layout Changes</h2>For structural changes (e.g., moving the logo, changing column width, adding new logic variables), you must work with Wunder Mobility.<ol class="steps-list"><li>Define your requirements Identify exactly what data field or design element needs to change (e.g., "Remove the rental distance column" or "Add a specific legal footer").</li><li>Contact Customer Success Submit your request to your Customer Success Manager.</li><li>Validation &amp; Implementation The Wunder Mobility team will validate if the change is technically feasible within the rendering engine and apply the update to your environment.</li></ol><h2>Method 2: Self-Service Text Adjustments</h2>Technically knowledgeable operators can modify specific text labels and descriptions appearing on the invoice using the Localization feature in the Backoffice.<ol class="steps-list"><li>Navigate to Settings &gt; Localization Search for the key <code class="inline-code-shadow bg-gray-100 border border-gray-200/60 dark:border-gray-800 font-medium dark:bg-gray-700/60 text-gray-700 dark:text-gray-200 font-mono text-md px-1 py-0.5 rounded-[0.2rem] [&amp;::before]:content-none [&amp;::after]:content-none">pdf.invoicing.lineitem</code>.</li><li>Edit the Template String You can adjust the text format or rephrase labels within this key.<blockquote>Warning: This field often contains logic placeholders (e.g., <code class="inline-code-shadow bg-gray-100 border border-gray-200/60 dark:border-gray-800 font-medium dark:bg-gray-700/60 text-gray-700 dark:text-gray-200 font-mono text-md px-1 py-0.5 rounded-[0.2rem] [&amp;::before]:content-none [&amp;::after]:content-none">{{description}}</code>). Do not remove these unless you intend to hide that dynamic data.</blockquote></li><li>Publish Localizations Changes are not live until you click Publish.</li><li>Verify with a Test Invoice Generate a new invoice in the system to verify that your text changes render correctly.</li></ol><img src="https://uploads.productlane.com/72855fdff8bd89673f156900e66081dc.jpeg" data-processed-src="https://uploads.productlane.com/72855fdff8bd89673f156900e66081dc.jpeg" data-original-src="https://uploads.productlane.com/6f85f638f4ad6e7521cb4f95cee67fbe.png"><hr><h1>Tips and Best Practices</h1><ul class="accent-bullets"><li>Test Before Publishing When making localization changes, always verify on a staging environment or with a test user. Incorrect syntax in the localization field can prevent PDFs from generating.</li><li>Keep It Compliant Ensure any text changes you make do not obscure mandatory tax information required by your local regulations (e.g., VAT rates or Company Registration numbers).</li><li>Logo Quality The logo on the invoice is pulled from your Branch settings. Upload a high-resolution, transparent PNG to ensure it looks professional in print.</li><li>Cost Centers If your B2B clients require Cost Centers on their invoices, ensure this feature is enabled and data is populated in the user/company profiles. The PDF engine automatically hides this field if no data is present.</li></ul><hr><h1>Troubleshooting</h1><h3>Changes are not appearing on invoices</h3><ul class="accent-bullets"><li>Cause: You are looking at an old invoice or the localization was not published.</li><li>Solution: Remember that template changes only apply to newly generated invoices. Check a fresh invoice. If the issue persists, ensure you clicked "Publish" in the Localization settings.</li></ul><h3>The PDF generation is failing</h3><ul class="accent-bullets"><li>Cause: A syntax error in the Localization settings.</li><li>Solution: If you recently edited <code class="inline-code-shadow bg-gray-100 border border-gray-200/60 dark:border-gray-800 font-medium dark:bg-gray-700/60 text-gray-700 dark:text-gray-200 font-mono text-md px-1 py-0.5 rounded-[0.2rem] [&amp;::before]:content-none [&amp;::after]:content-none">pdf.invoicing.lineitem</code>, check for broken curly braces <code class="inline-code-shadow bg-gray-100 border border-gray-200/60 dark:border-gray-800 font-medium dark:bg-gray-700/60 text-gray-700 dark:text-gray-200 font-mono text-md px-1 py-0.5 rounded-[0.2rem] [&amp;::before]:content-none [&amp;::after]:content-none">{{ }}</code> or invalid variables. Revert to the previous version if necessary.</li></ul><h3>Balance Movements section is missing</h3><ul class="accent-bullets"><li>Cause: The environment is configured for Invoicing Mode (Postpaid).</li><li>Solution: This is expected behavior. The Balance Movements section only renders for environments using Balance Mode (Prepaid/Wallet) to explain credit usage.</li></ul><h3>Customer details are missing from the header</h3><ul class="accent-bullets"><li>Cause: Incomplete user profile data.</li><li>Solution: The PDF engine prints what is available. Check the user's profile in the Backoffice to ensure Street, City, and VAT details are filled in.</li></ul>

Payments & Invoicing

Explains invoice PDF structure, modification options, and balance movement details.

Invoice PDF Structure & Customization

Platform overview

Getting Started

Locations and branches

Damages and Task management

Service App (Beta)

Optimizing Vehicle On-Field Maintenance Flows

Card Management (RFID)

Fleet & Operations

Managing On-Demand Rentals

Radar

On-Demand vs. Pre-Booking

Additions and Insurance

Subscriptions & Multi-Benefit Packages

Pricing, Memberships & Promotions

Login Options & Sign up Fee for End Users

User Management & Profiles

Roles and Permissions 

Business accounts and corporate billing

Users & Accounts

Payment Gateways and Methods

Invoicing

Revenue Protection and Payment Assurance

Mobile App Translation Keys: Sign Up, Rental & Booking

App Configuration & Customization

MaaS API

FreeNow Integration Overview

Credit Rating (CRIF)

Veriff Driving License Verification

Onfido Identity & Driver's License Verification

Braze Messaging integration 

AppsFlyer Integration

Zendesk Chat

Integrations & APIs

INVERS IoT Integration

Vehicle & IoT Support

Introducing Wunder Analytics (Beta)

Issues Analytics (Beta)

Data Insights

Two-Factor Authentication (2FA)

Security

Choosing the Right Sign-In Method in Wunder  (Email OTP vs Phone Login vs Password)