What is & how to use WHMCS

default view of a whmcs

In this guide I will explain what WHMCS is, and guide you on the basics of how to use it. Resellers may request one WHMCS license at no additional charge via AMP at no additional charge.

What is WHMCS

If you are a reseller and are looking for a one-stop hosting solution for things such as handling Billing and Support ticket requests, WHMCS is an incredible solution.
It is compatible with the major payment gateways such as PayPal, Google Checkout, and Authorize.Net, and includes many features such as the ability to use various currencies, create invoices, and create promotions.
You can also access the official WHMCS How-to guides here.
We will now show you how to accomplish the most common tasks in WHMCS.

How to Login to the Admin section of WHMCS:

  1. Access the website you installed WHMCS on, and add a: /admin to the end. For example if you installed WHMCS on: example.com, you would navigate to: example.com/admin to access the admin login page.
    logging into whmcs

  2. Enter your username and password, then click the Login button.
  3. You will then be logged into the Admin area.

How to Add a Customer:

  1. Login to the Admin area in WHMCS.
  2. In the navigation menu, roll your mouse over Clients, then click Add New Client..
  3. On the Add New Client menu, fill in the contact information for your client.
  4. If you want an email notification sent to the customer, click the check box next to Tick this box to send a New Account Information Message .
  5. Click the Add Client button to save what you entered. You will then see summary of the profile you created.
    default view of client summary in WHMCS

How to Manage Domains:

  1. Login to the Admin section of WHMCS.
  2. In the navigation menu, roll your mouse over Clients tab, then click View/Search Clients.
  3. Click the name of the client, who owns the domain you want to manage.
  4. Click the Domains tab.
  5. As per the official WHMCS documentation, “You’ll also see a row labelled Registrar Commands with options such as Renew, Modify WHOIS, Get EPP Code, etc…” Clicking those options allow you to make changes with their registrar.
John-Paul Briones Content Writer II

John-Paul is an Electronics Engineer that spent most of his career in IT. He has been a Technical Writer for InMotion since 2013.

More Articles by John-Paul

Thoughts on “What is & how to use WHMCS

    • The WHMCS provided with all of our reseller plans is unlimited. I’d advise contacting one of our sales representatives for more information.

  • How to connect WHMCMS to WHM? I want when user register from my website it will automatically set up on WHM

  • Which WHMCS package comes with your reseller accounts? I notice they range from 250 clients to unlimited.

    • Our reseller package is the base level package, but our customers do have the option of upgrading their package with WHMCS.

  • As a reseller, how do I sell a domains to my client. I have signed up on https://imhstore.com/. How do I integrate that into WHMCS? 

  • I have installed WHMCS in its own directory (mydomain.com/whmcs) and now I want to move it to the root (mydomain.com). What do I need to do to achieve this?

    • We do not currently have any documentation on how to do that. I did find a video on YouTube that you may be able to follow. It is quite old. however so I cannot say whether it will work for your specific version.

  • Hi,

    For the domains registered directly with InMotionHosting through AMP ,, is it able to add a registrar for them to be managed with WHMCS ?



    • Hello Rami,

      I’m not quite understanding what you mean. Any domain registered through us is with Melbourne IT as a registrar. Our reseller account holders are resellers for Enom. Those are the two registrars we deal with. What were you specifically trying to accomplish?

      Kindest Regards,
      Scott M

  • I’m getting exactly same error

    I’ve only WHMCS and WordPress installed

    Please advice

    (what should be the IP Address ?)

    • Hello Rami,

      Thank you for contacting us. Here is a link to a similar post in the official WHMCS Support forums. They discuss possible solutions to the issue, that may help troubleshoot.

      Thank you,

  • getting the same error as Miguel above:

    Fatal error: Call to a member function getUpgradeProductIds() on a non-object in /home/blackd34/public_html/admin/configproducts.php on line 0

    • Hello Bahram,

      Please check to see if you have any of the ResellerClub Hosting modules installed, if so please disable them as there seems to be a problem between them and the core WHMCS installation that is producing this error.

      Best Regards,
      TJ Edens

  • Hello TJ,
    I wish I would have posted here before contacting support! I worked with them for a few days on this and it was even escalated, with no resolution. I was basically told to contact WHMCS, which I could not since in order to contact support, you need to have purchased a license directly from them and my license was issued by InMotion. I wont go into much detail here, but you can look at my support tickets and see for yourself.

    I appreciate you looking into this so quickly and willingness to test this for yourself!


  • What is this error Im getting while adding a New Server at WHMCS?




    inmotion support and WHMCS support didnt help me properly, I am stuck with this problems more than 2 days.

    • Hello Andre,

      Are you sure the username you are putting in has WHM reseller access? The error is stating that the user you are putting in does not have WHM access at all.

      Best Regards,
      TJ Edens

  • I agree completely… This was one of the main reasons for selecting InMotion and I have been unable to use the software.

    InMotion Support was unable to resolve my issue and recommended I contact WHMCS directly. This is not possible, since I am a customer of InMotion and not WHMCS, so I cannot even create an account to request support. Either way, I do not have access to these server settings, so there is nothing I can do to resolve this myself. It would be pointless to contact WHMCS support.

    • Hello Joseph,

      Can you provide the url to your WHMCS installation so we may take a look into it? I use WHMCS on our servers and I have never seen this error so I am intrigued and would like to try and solve the problem.

      Best Regards,
      TJ Edens

    • Hello Miguel,

      I apologize for the responses you received. I installed WHMCS on your account in the test folder and it did load up for me with no errors and was wondering how I could replicate the PHP error.

      Best Regards,
      TJ Edens

  • I also having this problem as well, I’ve been suspecting might be the MySQL Strict Mode Causing the issue, however InMotion Team insist not to disabled it for me, even when WHMCS requirement is to have it disabled.


    I found it quite ridiculous when offering WHMCS as a main features for reseller, but providing a non working one for us.

  • Hello,

    I just installed WHMCS and when saving changes, I either get a blank page or a connection was reset message on the web-browser. I enabled reporting for the blank pages and this is what appears.

    Fatal error: Call to a member function getUpgradeProductIds() on a non-object in /home/mrandm8/public_html/admin/configproducts.php on line 0

    That particular error shows up when trying to add a product and clicking on continue (configproducts.php).

    I’ve been reading on WHMCS support and it appears that it may be due to an older version of IonCube being used on the web server.

    Please advise and thanks.


    • Hello Miguel,

      You will want to contact our Live Support to evaluate your server’s setting and see if they can assist you with your specific account.

      Kindest Regards,
      Scott M

    • Hello Saqib,

      Are you having issues logging into your WHMCS admin app on your android phone? We need a little bit more information about the current problem.

      Best Regards,
      TJ Edens

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