# SY02002: Service Unavailable

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

A required service or component is not available. The POS depends on various services to function, and one of them is currently inaccessible.

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

* **Background service stopped** — A required service isn't running
* **System resource issue** — Not enough resources to start the service
* **Dependency failure** — A service this depends on failed
* **Startup issue** — Service failed to start properly
* **Server error** — The WooCommerce server returned a 5xx error

## Server Error Mapping[​](#server-error-mapping "Direct link to Server Error Mapping")

This error code is triggered when the server returns:

| Server Code | Source                                               |
| ----------- | ---------------------------------------------------- |
| HTTP 5xx    | Any server error response (500, 502, 503, 504, etc.) |

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

### 1. Restart the Application[​](#1-restart-the-application "Direct link to 1. Restart the Application")

Close and reopen the POS:

1. Fully close the application
2. Wait a few seconds
3. Start it again

### 2. Restart Your Device[​](#2-restart-your-device "Direct link to 2. Restart Your Device")

A full restart often resolves service issues:

1. Save any important work
2. Restart your computer
3. Try the POS again

### 3. Check System Resources[​](#3-check-system-resources "Direct link to 3. Check System Resources")

Ensure system resources are available:

* Close unnecessary applications
* Check memory usage
* Check disk space

### 4. Update the Application[​](#4-update-the-application "Direct link to 4. Update the Application")

Ensure you're on the latest version:

* Check for available updates
* Install any pending updates
* Restart after updating

### 5. Reinstall if Necessary[​](#5-reinstall-if-necessary "Direct link to 5. Reinstall if Necessary")

If the service remains unavailable:

1. Uninstall the application
2. Restart your device
3. Download the latest version
4. Install fresh

## Browser-Specific (Web Version)[​](#browser-specific-web-version "Direct link to Browser-Specific (Web Version)")

For the web version:

* Ensure JavaScript is enabled
* Check that required browser features aren't blocked
* Try a different browser
* Disable browser extensions that might interfere

## When to Contact Support[​](#when-to-contact-support "Direct link to When to Contact Support")

If this error persists:

* Note when it occurs
* Check if specific actions trigger it
* Report with details for investigation

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

* [SY02001](/error-codes/SY02001.md) — Invalid Configuration
* [API01008](/error-codes/API01008.md) — Website Unavailable