From WHMCS Documentation

Supported Features

Create Suspend Unsuspend Terminate
Yes Yes Yes Yes
Change Package Change Password Usage Updates Client Area Link
Yes Yes Yes Yes

The following ports should be open for outbound connections from your WHMCS server: 2443

Additional Requirement

The InterWorx module requires SOAP compiled in your server's PHP configuration. In your WHMCS administration navigate to Utilities > System > PHP Info if you see no mention of SOAP then it is likely you will need to recompile.

WHMCS technical support cannot assist with recompiling PHP, please contact your server admin/hosting provider for assistance.

Adding an InterWorx Server

  1. Begin by going to Configuration () > System Settings > Servers or, prior to WHMCS 8.0, Setup > Products/Services > Servers.
  2. Click Add New Server.
  3. Enter the server name, IP address, select the server type "interworx" from the dropdown menu
  4. With InterWorx, a key is used for communicating with the API. Therefore when configuring an InterWorx server inside WHMCS, all you need to do is enter the API Key into the Access Hash field. Username and password are not required.
  5. The default port will be displayed. If your server is configured to communicate on a different port, check Override with Custom Port and enter the port. For more information refer to Server Port Overrides.
  6. Click Create Server to complete the process and add your new Interworx Server

Setting up an Interworx Package

  1. Navigate to Configuration () > System Settings > Products/Services or, prior to WHMCS 8.0, Setup > Products/Services > Products/Services.
  2. Click Create A New Product.
  3. Configure the name, description, pricing and other options as necessary.
  4. On the Module Settings tab select interworx
  5. Packages are then configured by entering the package name as it appears in InterWorx and the theme to set as the default for the new account. Both the package name and theme name are case sensitive, so should be entered exactly as they appear in Interworx. Should the capitalisation be incorrect this would cause an error to occur.

Common Problems

WHMCS is installed on the InterWorx server

When as part of the account creation process InterWorx restarts apache, therefore if WHMCS is installed on the same server upon which the account is being provisioned, it will kill the WHMCS process causing a problem.

To prevent that, adjust the InterWorx Webserver Settings so Force Graceful Restart is On.

Server Modules
cPanel/WHM - DirectAdmin - Plesk - Helm 3 - Helm 4 - Ensim - InterWorx - WebsitePanel - Cloudmin
Lxadmin - Virtualmin Pro - XPanel - HyperVM - SolusVM - Cloudmin - WHMSonic - VPS.Net
CentovaCast - SCPanel - MediaCP - GameCP - TCAdmin - Reseller Central - Auto Release - Heart Internet

Registrar Modules
Enom - ResellerClub - Nominet - OpenSRS - ResellOne - OnlineNIC - PlanetDomain - Affordable Domains
TPP Wholesale - TPPInternet - Stargate - Namecheap - NetEarthOne - Bizcn - InternetBS - GMO Internet
12Register - Registercom - DotDNS - WebNIC - Dot.TK - HexoNet - Realtime Register - Registereu
RRPProxy - ResellerCamp - TransIP - Heart Internet - IPMirror - NetRegistry - OVH - VentraIP Wholesale
Email - 101Domain

Fraud Modules
MaxMind - VariLogiX FraudCall - Telesign

Gateway Modules
2CheckOut - AsiaPay - Echeck - - CIM - Bank Transfer
BluePay - BluePay Echeck - BluePay Remote - Boleto - CashU - CC Avenue - ChronoPay
Direct Debit - EMatters - E-Path - eProcessingNetwork
eWAY Tokens - F2B - Finansbank - GarantiBank - Gate2Shop - LinkPoint
Inpay - IP.Pay - Kuveytturk - Modulo Moip - Mail In Payment
Merchant Partners - Merchant Warrior - IDEALMollie - Moneris - Moneris Vault
Skrill 1-Tap - SlimPay - NaviGate - NETbilling - Netregistry Pay - NoChex
Offline Credit Card - Optimal Payments - PagSeguro - Payflow Pro - Pay Junction
Paymate AU and NZ - Payment Express - PayPal - PayPal Express Checkout - PayPal Payments Pro (SecPay) - Payson - Planet Authorize - SagePay - ProtX VSP Form - PSIGate
Quantum Gateway - Quantum Vault - SagePay - SagePay Tokens - SecPay - SecurePay - SecurePay AU
Secure Trading - TrustCommerce - USA ePay - WorldPay - WorldPay Invisible