Title: Add a WHMCS License Key to a Reseller Windows Hosting Order Using the API  
PrimaryCategory: API  
Type: Procedural  
Tags: WHMCS, license_key, reseller_hosting, API, windows_hosting, billing  
Source UI Terms: auth-userid, api-key, order-id, invoice-option  
Source Reference: Add a WHMCS License Key to a Reseller Windows Hosting Order Using the API  

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Prerequisites:  
- You must have valid API credentials including an auth-userid and api-key.  
- You must know the Order ID of the Reseller Windows Hosting order to which you want to add the WHMCS license key.  
- Decide how you want customer invoices to be handled with the invoice-option parameter.  

Steps:  
1) Use the HTTP POST method to send your API request.  
2) Include the following required parameters in your request:  
   - auth-userid (Integer): Your API authentication user ID.  
   - api-key (String): Your API authentication key.  
   - order-id (Integer): The Order ID for which the license key will be generated.  
   - invoice-option (String): Determines the handling of customer invoices. Valid values are:  
     - NoInvoice  
     - PayInvoice  
     - KeepInvoice  
     - OnlyAdd  
3) Submit your API request to the appropriate server endpoint (US or India), using the format:  
   - US Server:  
     `https://test.httpapi.com/api/resellerhosting/windows/us/generate-license-key.json?auth-userid=&amp;api-key=ℴ-id=&amp;invoice-option=`  
   - India Server:  
     `https://test.httpapi.com/api/resellerhosting/windows/in/generate-license-key.json?auth-userid=&amp;api-key=ℴ-id=&amp;invoice-option=`  
4) The API returns a response map detailing the execution status of adding the WHMCS License Key.  

Warnings:  
- Ensure all required parameters are included in the request.  
- Use the correct invoice-option to control billing behavior accurately.  

Summary:  
You can add a WHMCS license key to a Reseller Windows Hosting order via the API by submitting a POST request with required authentication, order ID, and invoice handling parameters to the appropriate server endpoint.  

Evaluation Pairs:  

Q: What are the required parameters to add a WHMCS license key to a reseller hosting order using the API?  
A: You must include auth-userid, api-key, order-id, and invoice-option in your POST request.  

Q: How do you specify how customer invoices are handled with this API?  
A: Use the invoice-option parameter with one of the values: NoInvoice, PayInvoice, KeepInvoice, or OnlyAdd.  

Q: Which HTTP method is used to send the request to add the WHMCS license key?  
A: The HTTP POST method.

<p>When you want to add a WHMCS license key to an existing Reseller Windows Hosting order using the API. This article explains the required parameters, billing options, and API request details for WHMCS license provisioning.</p>
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<h2><a name="heading_0"></a>Description</h2>
<p>Adds the WHMCS license key for the specified Reseller Windows Hosting Order.</p>
<h2><a name="heading_1"></a>Parameters</h2>
<table class="codetable"><tbody><tr><th colspan="1" rowspan="1">Name</th><th colspan="1" rowspan="1">Data Type</th><th colspan="1" rowspan="1">Required / Optional</th><th colspan="1" rowspan="1">Description</th></tr><tr><td colspan="1" rowspan="1">auth-userid</td><td colspan="1" rowspan="1">Integer</td><td colspan="1" rowspan="1">Required</td><td colspan="1" rowspan="1">Authentication Parameter</td></tr><tr><td colspan="1" rowspan="1">api-key</td><td colspan="1" rowspan="1">String</td><td colspan="1" rowspan="1">Required</td><td colspan="1" rowspan="1">Authentication Parameter</td></tr><tr><td colspan="1" rowspan="1">order-id</td><td colspan="1" rowspan="1">Integer</td><td colspan="1" rowspan="1">Required</td><td colspan="1" rowspan="1">The Order ID for which the license key to be generated.</td></tr><tr><td colspan="1" rowspan="1">invoice-option</td><td colspan="1" rowspan="1">String</td><td colspan="1" rowspan="1">Required</td><td colspan="1" rowspan="1">This parameter will decide how the Customer Invoices will be handled. Values can be: <em>NoInvoice</em>, <em>PayInvoice</em>, <em>KeepInvoice</em>, <em>OnlyAdd</em></td></tr></tbody></table>
<h2><a name="heading_2"></a>HTTP Method</h2>
<p>POST</p>
<h2><a name="heading_3"></a>Example Test URL Request</h2>
<p><strong>US Server</strong> <code> https://test.httpapi.com/api/resellerhosting/windows/us/generate-license-key.json?auth-userid=0&amp;api-key=key&amp;order-id=0&amp;invoice-option=NoInvoice </code> <strong>India Server</strong> <code> https://test.httpapi.com/api/resellerhosting/windows/in/generate-license-key.json?auth-userid=0&amp;api-key=key&amp;order-id=0&amp;invoice-option=NoInvoice </code></p>
<h2><a name="heading_4"></a>Response</h2>
<p>Returns a map of the execution details of adding the WHMCS License Key.</p>
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When you want to add a WHMCS license key to an existing Reseller Windows Hosting order using the API. This article explains the required parameters, billing options, and API request details for WHMCS license provisioning.

Name	Data Type	Required / Optional	Description
auth-userid	Integer	Required	Authentication Parameter
api-key	String	Required	Authentication Parameter
order-id	Integer	Required	The Order ID for which the license key to be generated.
invoice-option	String	Required	This parameter will decide how the Customer Invoices will be handled. Values can be: NoInvoice, PayInvoice, KeepInvoice, OnlyAdd