> For the complete documentation index, see [llms.txt](https://vendex.gitbook.io/vendex-invoice/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vendex.gitbook.io/vendex-invoice/readme.md).

# Welcome

Welcome to the Vendex Help & Developer Hub

Your all-in-one guide for invoicing, procurement, receivables and compliance automation. Get answers, integrate with our APIs, and keep your business compliant with Nigeria's e-invoicing regulations.

### Jump right in

<table data-card-size="large" data-column-title-hidden data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>User Guide</strong></td><td>Complete documentation for end users covering everything from account setup to advanced features. Perfect for business owners, finance teams, and managers.</td><td><ul><li>Step-by-step onboarding instructions</li><li>Invoice creation and management</li><li>Order tracking and buyer portal</li><li>FIRS compliance setup guide</li><li>Receivables and cash flow management</li><li>Account settings and security</li></ul></td><td></td><td></td><td><a href="/vendex-invoice/user-guide/editor.md">User Guide</a></td></tr><tr><td><strong>API Documentation</strong></td><td>Comprehensive API reference for developers building integrations with Vendex. RESTful endpoints, authentication, webhooks, and code examples.</td><td><ul><li>REST API endpoints and authentication</li><li>Invoice, order, and customer APIs</li><li>Webhook configuration and events</li><li>Code examples (Node.js, Python, PHP)</li><li>Sandbox environment for testing</li><li>Integration best practices</li></ul></td><td></td><td></td><td><a href="/vendex-invoice/developers/integrations.md">Developers</a></td></tr></tbody></table>