# API06003: Invalid Site Configuration

## What This Means[​](#what-this-means "Direct link to What This Means")

The site configuration is invalid or incomplete. This could involve incorrect URLs, authentication settings, or other configuration issues.

## Common Causes[​](#common-causes "Direct link to Common Causes")

* **Partial configuration** — Some settings are missing
* **Mismatched settings** — Configuration doesn't match the site
* **Corrupted configuration** — Settings were corrupted
* **Site changes** — The site was modified without updating POS config

## How to Fix[​](#how-to-fix "Direct link to How to Fix")

### 1. Review All Settings[​](#1-review-all-settings "Direct link to 1. Review All Settings")

Check the complete configuration:

* Site URL is correct
* Authentication is properly configured
* Any additional settings are correct

### 2. Reconfigure from Scratch[​](#2-reconfigure-from-scratch "Direct link to 2. Reconfigure from Scratch")

If configuration is corrupted:

1. Clear all stored settings
2. Start the setup process again
3. Enter fresh configuration

### 3. Check Site Requirements[​](#3-check-site-requirements "Direct link to 3. Check Site Requirements")

Verify your WordPress site meets requirements:

* WordPress is installed and accessible
* WooCommerce is installed and active
* WCPOS plugin is installed and active
* Permalinks are enabled (not "Plain")

### 4. Test Site Access[​](#4-test-site-access "Direct link to 4. Test Site Access")

Verify these URLs work in a browser:

* `https://yoursite.com/` — Main site
* `https://yoursite.com/wp-json/` — REST API
* `https://yoursite.com/wp-json/wcpos/v1/` — WCPOS API

### 5. Check WordPress Settings[​](#5-check-wordpress-settings "Direct link to 5. Check WordPress Settings")

In WordPress Admin:

1. Settings → General — Verify URLs
2. Settings → Permalinks — Ensure not "Plain"
3. WooCommerce → Status — Check for issues

## Configuration Requirements[​](#configuration-requirements "Direct link to Configuration Requirements")

A valid configuration needs:

* **Site URL** — Full URL with protocol
* **Authentication** — Valid credentials or API keys
* **Permissions** — User has POS access
* **Plugins** — Required plugins are active

## Related Errors[​](#related-errors "Direct link to Related Errors")

* [API06001](/error-codes/API06001.md) — Invalid URL Format
* [API06002](/error-codes/API06002.md) — Missing API URL
* [API05002](/error-codes/API05002.md) — WCPOS Plugin Not Found