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Lagom One Step Order Form For WHMCS

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About Lagom One Step Order Form For WHMCS

Lagom One Step Order Form For WHMCS is a one of a kind product built to simplify and attract the ordering process at the same time.

You will be granted numerous options to customize the ordering pages, including the division into one or two pages and choose the page layout.
If integrated with Lagom WHMCS Client Theme, your order pages will boost with some extra, eye pleasing, options.

  • Client Area:
✔ Completely Redesigned Order Process
✔ Attractive And Customized "Modern" Layout
✔ Responsive Design With Mobile Support
✔ Improved Order Conversion Rate
✔ Reduced Shopping Cart Abandonment Rate
✔ Order Process In One Or Two Steps
✔ Quick Navigation Between Product Groups
✔ Package Slider To Display Multiple Products
✔ Domains And TLDs Showcased In Spotlights
✔ Customized Order Fields With HTML Support
✔ Customized Images, Colors And Styles For Configurable Options And Product Addons
✔ Percentage Pricing Comparison Of Billing Cycles To The Shortest One
✔ Automatic Currency And Language Selection Based On Geolocation
✔ Prices Discounts Applied Due To Discount Center For WHMCS Integration
✔ Fees And Discounts Applied Due To Payment Gateway Charges For WHMCS Integration
✔ Support For Ordering Features:
✔ Intuitive Products And Product Group Selection
✔ Adding Products And Product Addons To Shopping Cart
✔ Registering And Transferring Domains
✔ Working With MarketConnect Products
✔ Working With WHMCS Metric Billing
✔ Applying Promo Codes
✔ Changing Billing Cycles
✔ Changing Currency
✔ Customizing Configurable Options
✔ Providing Client And Product Custom Fields
✔ Support For All Payment Gateways
✔ Login With Existing Account Or Creating New One
✔ Compatible With WHMCS Built-in "Twenty-One" Theme And "Lagom WHMCS Client Theme"
  • Admin Area:
✔ Choose Available Templates:
✔ Order Form Type:
✔ One Step
✔ Two Steps
✔ Step By Step (Coming Soon)
✔ Order Form Layout
✔ Sidebar Summary
✔ Bottom Summary
✔ Package Type:
✔ Default Style
✔ Horizontal
✔ Apply General Settings:
✔ Disable Order Form Redirection
✔ Hide Group Name From Suboption Name
✔ Set Browser's Title Bar
✔ Hide VAT Number Field For Selected Countries
✔ Hide IP Address Box
✔ Hide Hostname And Root Password Fields:
✔ For All Products
✔ For Selected Product Groups
✔ Hide Nameservers Fields:
✔ For All Products
✔ For Selected Product Groups
✔ Apply Layout Settings:
✔ Display Navigation Tabs
✔ Use Simplified Order Summary
✔ Display Package Slider
✔ Mark Required Fields
✔ Select Promotion Code Field Location
✔ Select Order Fields Location
✔ Apply Domain Search Box Settings:
✔ Show Domain TLDs Dropdown
✔ Show Domain Spotlights
✔ Select Domain Configuration Elements
✔ Apply Pricing Options:
✔ Display Price Suffix
✔ Choose Currency Selector:
✔ Always Displayed
✔ Hide If One Currency Is Available
✔ Hide Permanently
✔ Configure Zero Value Pricing:
✔ Display "0.00" Numeric Value
✔ Display "Free" Phrase
✔ Hide Values Completly (For Configurable Options And Product Addons)
✔ Apply Billing Cycles Settings:
✔ Automatically Select The Longest Billing Cycle
✔ Show Prices Comparison
✔ Hide “Select” Buttons
✔ Select Billing Cycles Order
✔ Select Number Of Columns For Desktop View
✔ Apply Billing Details Settings:
✔ Hide Billing Details Optional Fields
✔ Define Personal Information Fields Order
✔ Define Billing Address Fields Order
✔ Apply CAPTCHA Settings:
✔ Enable hCaptcha Support
✔ Select Protection:
✔ For All Users
✔ For Unlogged Users Only
✔ Disabled
✔ Select Pages For Protection:
✔ Client Registration
✔ Contact Form
✔ Domain Checker
✔ Login Forms
✔ Shopping Cart Checkout
✔ Ticket Submission
✔ View And Manage Orders List With Created Order Fields
✔ Customize Payment Gateways
✔ Assign Custom Icons To Gateways
✔ Use Prepared Icons From Library
✔ Upload Custom Icons To Any Gateway
✔ Add And Manage Custom Order Fields:
✔ Select Order Field Type:
✔ Checkbox
✔ Dropdown
✔ Input text
✔ Provide Order Field Name And Description
✔ Select Order Field Requirement
✔ Manage Configurable Options:
✔ Display In Single Section
✔ Add Titles And Descriptions
✔ Select Description Type
✔ Select Display Type
✔ Select Illustration Type
✔ Add Customized Image
✔ Define Color
✔ Select Suboptions Groups
✔ Hide Zero Prices
✔ Manage Product Addons:
✔ Add Customized Image
✔ Select Image Display Form
✔ Define Color
✔ Manage Media Library:
✔ Upload And Remove Custom Images Used In Order Form
✔ Manage Geolocation Settings:
✔ Enable Auto Location Detection Based On Client's Country IP Address
✔ Bypass Client Location Detection Using Specified IP Address
✔ Set Default Currency And Language
✔ Set Custom Currencies And Languages Per Detected Countries
✔ Additional Integration With "Lagom Client Theme":
✔ Seamless Layouts Blending
✔ Featured Additional Styles:
✔ Default
✔ Modern
✔ Depth
✔ Futuristic
✔ Five Color Schemes Per Style
  • General Info:
✔ Fully Integrated With Lagom WHMCS Client Theme 2.1.0 And Later
✔ Integrated With Discount Center For WHMCS For WHMCS - Manage Discounts Applicable To Order Of Defined Combination Of Products
✔ Integrated With Payment Gateway Charges For WHMCS - Include Extra Fees And Discounts Based On Multiple Conditions
✔ Limited Integration With Abandoned Cart For WHMCS For WHMCS
✔ Multi-Language Support
✔ Supports PHP 8.1 Back To PHP 7.4
✔ Supports WHMCS "Twenty-One" Theme
✔ Supports WHMCS V8.10 Back To WHMCS V8.8
✔ InnoDB Engine Must Be Used By WHMCS Tables
✔ Requires ionCube Loader V12 Or Later
✔ Easy Module Upgrade To Open Source Version

Installation and Configuration

The below instructions will direct you through the whole installation and configuration process of Lagom One Step Order Form For WHMCS.

Do not hesitate, just take a closer look at the screenshots and their descriptions to get clear directives and tips.


1. Log in to our client area and download the module.
LOF 1.png
2. Upload and extract the extension into the main WHMCS directory.

Extracted files in your WHMCS directory should look like this:

LOF 2.png
3. When you install 'Lagom One Step Order Form' for the first time, you have to rename the 'license_RENAME.php' file.

The file is located in 'modules/addons/LagomOrderForm/license_RENAME.php'. Rename it from 'license_RENAME.php' to 'license.php'.

LOF 4.png
4. In order to configure your license key, you have to edit the previously renamed 'license.php' file.

Enter your license key between quotation marks as presented on the following screen. You can find your license key in our client area → 'My Products'.

LOF 5.png
5. Now, set up the 'storage' folder as recursively writable.
This folder is available at 'your_whmcs/modules/addons/LagomOrderForm/'.

'Note: The folder permissions depend on your server configuration, please set it to either: 700, 755 or 777.

LOF 6.png
6. Finally, set the 'htaccess' file rule

Open the 'htaccess' file, you will find it in the main root directory.

7. If you have 'fully friendly rewrite' set up, you will have to paste the below rule underneath 'RewriteBase /' :
   RewriteBase /
   RewriteRule ^order/(.*)$ order.php?m=OneStepOrder&gid=$1 [L]

Otherwise, create the below rule above the WHMCS rules:

  RewriteBase /
  RewriteRule ^order/(.*)$ order.php?m=OneStepOrder&gid=$1 [L]
For a WHMCS installation located in a subfolder, you must add the subfolder name before "order/".
For example, if your subfolder is named "store," the modified code would be as follows:
  RewriteBase /
  RewriteRule ^store/order/(.*)$ order.php?m=OneStepOrder&gid=$1 [L]
8. Make sure that all your WHMCS tables use "InnoDB Engine"

Refer to Tips section, point '5 to learn how to change the database tables engine.

*9. This step is optional:

If you are using an NGINX server, it is advised to add the below lines into its configuration file. Otherwise, the module might not work properly.

 location /order {
       rewrite ^/order/(.*)$ /order.php?m=OneStepOrder&gid=$1;
       location /modules/addons/LagomOrderForm/api/ {
       try_files $uri $uri/ /modules/addons/LagomOrderForm/api/index.php?$args;

In some cases the above code might not work well, in that situation, please use the below code instead ("break" added):

 location /order {
       rewrite ^/order/(.*)$ /order.php?m=OneStepOrder&gid=$1 break;
       location /modules/addons/LagomOrderForm/api/ {
       try_files $uri $uri/ /modules/addons/LagomOrderForm/api/index.php?$args;

Remember to adjust the above example to your WHMCS location.


10. Now, you have to activate the module in your WHMCS system.

Log in to your WHMCS admin area and proceed to 'System Settings' 'Addon Modules'.
Afterward, find 'Lagom One Step Order Form' and press the 'Activate' button.

LOF 9.png
11. In the next step you need to permit access to this module.

To do so, click on the 'Configure' button, tick checkboxes to assign desired admin roles.

LOF 10.png
12. You have just successfully installed Lagom One Step Order Form For WHMCS!


Lagom One Step Order Form For WHMCS has been designed to give flexibility for the clients and allow to configure it to specific business needs.
Below we will describe all the available customization options.

Addon Configuration


Begin by navigating to the “Lagom One Step Order Form” addon in your WHMCS admin area, there the “Templates” section will be opened by default.
LOF 11.png

Order Form Type

In the 'Order Form Type' section you may choose which of the available order types should be used in the client area. You may choose between three types, these are:
  • One Step
  • Two Steps
  • Step by Step* (available soon)

For detailed description with visualization in the client area look below.

LOF 11 1.png
The first one, called 'One Step' allows you to decide whether to show all of the product configuration options on a single page only.

Note that at the beginning of the ordering process your client will be able to switch between different product packages within a specific product group.

Client area view:

LOF 12.png
When the 'Two Steps' option is selected, the order process is divided into two separate steps, where the first one allows you to choose a product to order.
In the second step the configuration options available for the previously selected product are displayed.

Note: It is not possible to switch between products if this order form type is selected.

Client area 'Step 1' view:

LOF 13.png
Client area 'Step 2' view:
LOF 14.png
'Step by Step' - this option is not yet available, it will be added to the module in one of its upcoming versions.

Order Form Layout

The second option to customize the template is dedicated to the location of the "Order Summary" element - 'Order Form Layout'.

There are two possibilities to choose from:

  • Sidebar
  • Bottom

Underneath you will find details of every possible choice with its visualization in the client area.

LOF 15.png
Sidebar - if selected, the 'Order Summary' box is displayed on the right side in the client area order page.
The summary box is always affixed to the top of the browser screen, so clients will also have quick access to the complete summary of the current order.
LOF 16.png
When the 'Bottom' option is selected, the 'Order Summary' box will be displayed at the end of the order process.
LOF 17.png
In case of the 'Bottom' order form layout, a quick summary bar with the total amount and the checkout button will be available at the very bottom of the screen.
LOF 18.png

Package Type

This selection of the 'Template' setting, defines the layout of the product package that will be used. You can choose between two options: 'Default' and 'Horizontal'.
LOF 19.png
Client area view of the 'Default' package type:
LOF 20.png
Client area view of the 'Horizontal' package type:
LOF 21.png


Navigate to the 'Lagom One Step Order Form' addon, 'Settings' section. There you may manage all the extra layout settings.

General Settings

  • Disable Redirection - if enabled, automatic redirection from standard WHMCS cart and order pages will be turned off. When clients use a ready link to e.g. a cart, it will be displayed with a standard WHMCS view.
  • Hide Group Name From Suboption Name - When activated, it will remove the duplicate "group name" from the "option name", for specific "option types"
  • Browser's Title Bar - if you want to change the default title tag, enter here a new phrase, it will be visible in the title bar at the top of the browser window in the client area
  • Hide VAT Number Field For - select countries for which the 'VAT Number' field in the account details will be hidden
  • Hide Optional Billing Fields - select any fields, labeled as optional in your WHMCS, to prevent their appearance in the billing details section of the client area.
  • Hide IP Address Box - activate this setting to disable the display of the information box containing the client's IP address on the order page
  • Hide Hostname and Root Password Fields - by enabling this option, you can prevent the "Hostname" and "Root Password" fields from appearing in the "Configure Server" section of the product configuration.
    You have the flexibility to hide these fields:
    • For All Products
    • For Product Groups - select specific product groups only
  • Hide Nameservers Fields - activate this feature to hide the "NS1 Prefix" and "NS2 Prefix" fields within the "Configure Server" section of the product configuration.
    This guarantees that users will not see these fields when configuring their server settings. You have the flexibility to hide these fields:
    • For All Products
    • For Product Groups - select specific product groups only
  • Remove Hidden Data from JSON - activate to ensure that products and their product groups that are labeled as 'Hidden' in WHMCS will be excluded from view within the browser's developer tool
    (this option is by default enabled, disable only if you are sure you need to display these data in JSON)
LOF 27 1.png

Order Page Layout

Settings dedicated to the order page layout:
LOF 28 0.png
  • Display Navigation Tabs - if this option is enabled, the additional navigation tabs are shown below the main header title. The navigation tabs include product groups, which previously must be configured in WHMCS settings.
LOF 28.png
  • Simplified Order Summary - if enabled, the "Order Summary" box displays only 'Totals' and 'Total Due Today' values.
    It will not display any details about added products, domains or addons.
LOF 24.png
  • Package Slider - decide whether you would like to use a slider to view the content of a product group that contains more than three packages in the case of the 'Sidebar' order layout,
    and more than four packages in the case of the 'Bottom' order layout.
LOF 22.png
Although the 'Slider' option is enabled, your clients still have the option to display all of the packages at once, without the need to scroll them horizontally.
When All option is on, all products in the package are displayed in multiple rows.
LOF 23.png
  • Mark Required Fields - if enabled, all the fields that are obligatory to be filled in before continuing, will be marked with the 'required' label.
  • Promotion Code Field Location - This option allows to change the location of the promotion field, to display it more prominently.
    • Below "Order Summary" - By default, the promotion code field is located under the summary box. The input field will be shown after clicking the "Have a promo code?" link.
    • Above "Product Billing" Section - Display the promotion code field above the "Product Billing" section.
    • Above "Payment Method" Section - Display the promotion code field above the "Payment Method" section.
    • The order page bottom - Display the promotion code field as the last section on the order form.

The below screen shows the Above "Product Billing" Section position:

LOF 23 1.png
  • Order Fields Location - Choose the location of WHMCS "Terms of Services" checkbox and other custom order fields, which can be configured in product addon management page.
    • Order Summary box - By default the "Terms of Services" checkbox and all custom order fields are displayed in the "Summary Box", however, you need to be aware that this location has limited space.
      That is why it is suggested to display maximum 2-3 order fields in this location.
    • Last section on order form - When this option is selected, all your order fields will be displayed on the last position on the order form.
      This location can include more custom order fields than the option described above.

The below screen represents the default 'Order Summary box' option:

LOF 23 2.png

Domain Search Box

  • Show Domain TLDs Dropdown - This option allows the user to enable the domain TLDs selector, which will be shown in the domain search field.
  • Show Domain Spotlights - Allows you to display "Spotlight TLDs" that have been previously configured in WHMCS settings.
    When the "Show Domain Spotlights" option is disabled, no domain TLDs are displayed below the domain search bar.
  • Domain Configuration Elements - Select specific elements for domain configuration to impose a customized selection and your preferred sequence.
    You have the flexibility to define the order in which these elements are presented and specify which of the available elements should be displayed.
    If the default WHMCS configuration is your preference, simply leave this field empty to seamlessly adopt the WHMCS standard settings.
  • Domain Configuration Elements (Logged in Users) - Select the elements for domain configuration for clients who are logged in, and they will be displayed in the specified order.
    If you opt for the default WHMCS configuration, you can leave this field empty.
LOF 21 01.png
  • Show Domain TLDs Dropdown option enabled:
LOF 21 0.png
  • Show Domain Spotlights - option enabled:
LOF 25.png
LOF 26.png
  • Domain Configuration Elements in the client area - custom selection and changed order as defined in the addon
LOF 26 1.png
  • Domain Configuration Elements (Logged in Users) in the client area - view with default WHMCS elements (field in the addon is left empty)
LOF 26 0.png

Pricing Options

Main Settings
  • Display Price Suffix - if enabled, the currency suffix is shown next to the price.
    However, it is vital to previously configure the currency and its suffix details in your WHMCS admin area settings, based on their video tutorial
  • Currency Selector - choose how the currency selector behaves:
    • Always visible - ensure it remains consistently accessible
    • Hide it permanently
    • Hide it only when there is a single currency option available for selection
LOF 21.png
Zero Value Pricing - choose whether to display zero prices as a "Free" label or as a "0.00" numerical representation corresponding with currency format for:
  • Product Packages
    • Show 0.00 values
    • Show "Free" instead of 0.00 values
  • Domains
    • Show 0.00 values
    • Show "Free" instead of 0.00 values

In the case of configurable options and product addons, you may also completely hide the zero-value prices:

  • Product Configurable Options
    • Show 0.00 values
    • Show "Free" instead of 0.00 values
    • Hide 0.00 values
      Note: These settings overwrite the 'Hide Zero Price' setting available for a single configurable option.
  • Product Addons
    • Show 0.00 values
    • Show "Free" instead of 0.00 values
    • Hide 0.00 values
LOF 21 02.png

Billing Cycles

Billing cycles related configuration:
LOF 25 04.png
  • Select The Longest Billing Cycle - When this option is activated, the option with the longest billing cycle will be automatically selected.
    Otherwise, the option with the shortest billing cycle will be chosen.
LOF 25 4.png
  • Show Prices Comparison - Display the price difference percentage to show how much the client will save when choosing a given billing cycle in comparison to the shortest one.
LOF 25 0.png
  • Hide “Select” Buttons - When activated, the "Select" button will be removed from the billing cycle tile
  • Billing Cycles Order - Define whether the product available billing cycle options shall be displayed in an ascending or descending order.
  • Number of Columns (desktop view) - Choose the number of columns for the billing cycle boxes, you can choose between 3 (default) and 4 columns. This option is applicable only for screen size above 1320px

Billing Details

Billing details related configuration:
  • Hide Billing Details Optional Fields - Select from the optional fields those that will not be displayed on the checkout
  • Personal Information Fields Order - Configure the order in which personal information fields will appear on the checkout
  • Billing Address Fields Order - Configure the order in which client billing details fields will appear on the checkout
LOF 25 6.png
LOF 25 7.png

CAPTCHA Settings

Enhance your site security by enabling CAPTCHA form protection.
  • CAPTCHA Type - You may choose between two available captcha protection types. That is "Default" and "hCaptcha"
    • Default - In case you choose this type, the standard WHMCS "Captcha Form Protection" will be enabled. You may manage it in your 'WHMCS admin area' → 'General Settings' → 'Security'.
      Select the type there, choose forms in the client area and enter your Site and Secret Keys.
    • hCaptcha - For hCaptcha verification you will need to provide the full configuration with the connection details here in the addon.
  • hCaptcha Protection - Enable protection for:
    • all users
    • unlogged users only
      • disable this feature
  • Pages with hCaptcha Protection - Select the client area pages for which the hCaptcha verification will be active:
    • Shopping Cart Checkout
    • Domain Checker
    • Contact Form
    • Ticket Submission
    • Login Forms
  • hCaptcha Site Key - Provide your hCaptcha Site Key, you need to be registered first!
  • hCaptcha Secret Key - Enter your hCaptcha Secret Key.
LOF 25 2.png


Open this section to view a complete list of orders placed in your client area with the Lagom One Step Order Form module.
Order List

View the orders list directly from the addon module. The list includes all the details such as: order number, date of placement, client name payment details and status.
You may clear the list by deleting single orders. Note that the entry is removed from the addon only, the real order in WHMCS in no way changed.

LOF 25 3.png
Order Details - Press the "Details" icon to see all the information on the additional order fields.
LOF 25 5.png


Lagom WHMCS One Step Order Form has been designed to give flexibility for the clients and allow to configure it to specific business needs. Below we will describe all the customization options available in the current version

Payment Gateways

The 'Payment Gateways' section is dedicated to super easy customization of your payment gateways.
You can quickly upload new gateway logos and assign them to the order payment gateways with just a few simple clicks.
LOF 29.png
In order to successfully upload a gateway logo, follow the below steps:

1. Upload a new icon in the "Icon Library" section

LOF 30.png
LOF 30 1.png
2. Assign newly uploaded graphics to a specific gateway by pressing the "Click to assign icon" box.
LOF 31.png
LOF 31 1.png

Order Fields

Make your order process legally compliant with any country by adding needed fields to the order. These fields will be displayed below the default WHMCS "Terms of Services" checkbox.
LOF 32 1.png
Add/Manage Order Fields:
  • Type - Choose from 3 different field types:
    • Checkbox
    • Input Text
    • Dropdown
  • Name - set the field name
  • Required - choose whether this field should be required, or not
  • Description - provide a more detailed description for the newly created field
LOF 32 2.png
Fields Location can be managed using the "Order Fields Location" option in addon settings. You can choose from two different locations.
  • Order Summary box (default) - By default "Terms of Services" checkbox and all custom order fields are displayed in the "Summary Box".
    Please be aware that this location has limited space, that is why it is suggested to display maximum 2-3 order fields in this location.
LOF 32 3.png
  • Last section on order form - When this option is selected, all the "Order Fields" will be displayed in the last order section. This location can contain more fields than the above alternative.
LOF 33 3.png

Configurable Options

Configurable Options management is an advanced tool, which introduces new features to customize and manage WHMCS product configurable options.
You can now configure different configuration layouts for every WHMCS product. Learn how to use its functions in Config Options Manager documentation.
LOF 37.png
Available management tools are described in a separate article, please refer to the following links:
  1. Configurable Option Groups
  2. Configurable Options
  3. Options Management
  4. Options Types
  5. Exemplary Configuration
  6. Additional Fields Translation

Product Addons

Product Addons Manager introduces new options to manage and customize addons created in WHMCS system (opens new window). You are now able to assign a custom image to every product addon.
LOF 33 0.png
Manage Addons:
  • Image - Assign image to the product addon. This field lists graphics added to the addon in the Media Library.
  • Illustration Type - You can choose from 4 different illustration types - learn more:
    • Default
    • Icon
    • Illustration
    • Small Illustration
  • Color
LOF 33 2.png

Media Library

Upload and manage graphics that can be assigned to configurable options or product addons. This page comes with a set of predefined graphics which you can download from here.

You may fetch the ready package and upload it into the /modules/addons/LagomOrderForm/storage/gallery/ directory. Keep in mind that all the graphics must be located directly under the /gallery/ catalog.

LOF 34 0.png


The Lagom One Step Order Form may smoothly detect the customer's location automatically and display the currency according to the detected country, providing an enhanced user experience.

To use the geolocation feature the most effectively, you need to update your geolocation database. Here you will find out how to do that:

  1. To download the free geolocation database you need to first create an account at the Maxmind portal, the instructions can be found at this site
  2. Log in to your account, proceed to GeoIP2/ GeoLite2 → Download Files, find 'GeoLite2 Country in the table, and download the file in .mmdb format
  3. Find the following file in your module files at /yourWHMCS/modules/addons/LagomOrderForm/app/Integrations/Geolocation/Submodules/GeoIP2/GeoLite2-Country.mmdb directory and overwrite it with the newly downloaded file.
LOF 34 01.png
Default Settings
  • Enable Geolocation - enable to let the module automatically detect the client location and adjust the used language and currency to the location based on the configuration
  • Custom IP Address - enter an IP address in this field and the module will ignore the client location and use the specified IP address to assign currency and language specific to that location.
    Leave this field empty to enable automatic geolocation based on the client's IP address
  • Deafult Currency - select a currency in this field to be used for countries that do not have a specific currency assigned in the "Country Settings" section. This currency will act as a default option for those countries.
  • Default Language - select a language in this field to be used for countries that do not have a specific language assigned in the "Country Settings" section. This language will act as a default option for those countries.
LOF 34 1.png
Country Settings

Define a specific language and currency per country. If the country is detected as the client location, the dedicated currency and language will be used in the client area.
If you do not set any data per country, default settings will be used. For your comfort, you may use the mass action feature, to assign a single currency or language to numerous countries at once.

LOF 34 2.png
LOF 34 3.png

Client Area

An exemplary ordering process in the client area where the 'Twenty-One' theme is used in the WHMCS system.

Important: It is possible to use the Lagom One Step Order Form For WHMCS module without the Lagom WHMCS Client Theme. The module remains fully usable and all available features are supported when the standard WHMCS "Twenty-One" theme is used.
The only limitation concerns the number of supported styles and their color schemes. For "Twenty-One" theme, the "Modern" style with "blue" color scheme is used by default and there are no extra options to choose from.

Take a look below to see what such ordering pages may look like.
Note: Please keep in mind that the "Lagom One Step Order Form" module currently only permits ordering one item per transaction, and it does not support multiple orders yet.

Here you can see an example of a "One Step" order form view with the 'Package Slider' option turned on, 'Sidebar' order form layout and 'Default' package type.

LOF 32.png
The next example illustrates the "Two Steps" order form view.

In this option, the first steps is dedicated to selecting product packages:

LOF 33.png
In the second step, the rest of order configuration takes place.
LOF 34.png

Addtional Information

Custom Hooks

This section includes a list of supported by the module custom hooks.
  • LagomOrderFormProductsList - allows you to modify the list of products that will be displayed to the customer.

Exemplary usage:

add_hook('LagomOrderFormProductsList',1,  function($productsList){
return $productsList;
  • ShoppingCartValidateProductUpdate - allows you to include your own validation and error messages when a product in the shopping cart is being updated.

Exemplary usage:

add_hook('ShoppingCartValidateProductUpdate', 1, function($vars) {
    return [
        'Error message feedback error 1',
        'Error message feedback error 2',

Editing Module Files

You are allowed to modify three types of module files, these are: JS, TPL and CSS files

The JS files are compiled files which means that they are all bundled into one file. Consequently, if you decide to make any changes in a JS file, you have to additionally take one of the below-described steps to see your changes:

1. Debug
The module has a built-in system that allows you to build JS ad-hoc, to do this you need to create a .debug file (the dot at the beginning is required) in the /modules/addons/LagomOrderForm directory.
Then you can edit the JS files, and the changes will be visible in the page source.

2. Build
If you choose this method, you have to pack all the files into one. Thanks to that, the page loads faster because HTML contains less code and JS is loaded as a separate file.
Required files:

  • package-lock.json
  • gulpfile.js

Please contact us and we will provide you with the necessary files!

Next, upload these files into the main WHMCS directory and run the command:

 docker run --rm -v $(pwd):/srv  huli/gulp build  

Note: Before you run the above command you must install docker in your system.
In case you do not want to use docker, you may simply install gulp with nodejs and run the following command:

gulp build    


1. Adding a new language.

If you want to change the WHMCS module language, go to the following folder:


Copy english.php file and rename the newly copied directory with your desired language, for example italian.php. Then, open your personalized file now and replace particular sentences.

2. The module supports language Overrides.

The language file english.php is uncoded and can be freely modified. However, it is advised not to change this file itself, it is recommended to use overrides so the changes persist through module updates.

  • Open the overrides within the ~/lang/ directory.
  • Next, create or copy the language file you are going to change. If you want to, for example, create an override for the English language, you will have to create the following directory:
  • Open the just created file to edit its content.
  • At the top of the file you must point the used code, for example: <?php for PHP code.
  • Change the file content according to your needs. You may enter only single variables to be overridden or change all the lines in the language file.

For example:


$_LANG['order_new_product'] = 'You’re almost there! Complete your order';


 $_LANG['order_new_product'] = 'Complete the order';
3. Additional URLs used as direct shopping cart links.

Linking to WHMCS with additional URLs is supported by the module, yet only the two below formats are allowed, make sure you do not use any other format:


  1. ?promocode=testcode
  2. promocode/testcode


  1. ?billingcycle=annually
  2. billingcycle/annually


  1. ?addons=10,22
  2. addons/10,22

Exemplary supported links with additional variables used:

  2. https:/
4. The module supports URLs leading to a product page with specified configurable options and currency.

Exemplary URL:[1]=5  


  1. configOption[1] - stands for the configurable option name
  2. 5 - value, e.g. ID configurable option value

Exemple 2:  


  1. domain - required parameter
  2. - target domain name to search
5. The module requires the InnoDB Engine to be used by the WHMCS database table. Check how to change the database engine:
  • Log in cPanel and open phpMyAdmin.
  • Look at the column on the left, you will find there a list of database tables, select the one whose storage engine you are going to change.
  • Click on the "Operations" tab.
  • Find the "Storage Engine" option under the "Table options".
  • Select the InnoDB engine from the dropdown menu.
  • Press "GO" to save the changes.

Alternatively, you may run the below SQL query after selecting the desired database from phpMyAdmin (step "2").

ALTER TABLE `table_name` ENGINE = InnoDB

After the query has been successfully executed, the database engine of the selected database table will be changed to "InnoDB".

Note: In case you need a more detailed instruction with step by step illustrations, please refer to this article.

Update Instructions

An essential guidance through the process of updating the module is offered here.

Make sure that the Lagom One Step Order Form version, which you are going to install, is compatible with your WHMCS and Lagom WHMCS Client Theme installations!

  1. Create a backup copy of your WHMCS files and database.
  2. Download the latest version of the module from our client area
  3. Remove all the files of the previous module version from the WHMCS root directory (except the license.php file).
  4. Extract the `.zip` folder that has been downloaded from the client area.
  5. Upload the `/php71+/` content to your FTP server.
  6. Make sure that during the upload process all the files have been correctly uploaded and no errors occurred.
  7. Clear your browser and server cache (for example Cloudflare).
  8. Clear the WHMCS template cache in: Utilities → System → System Cleanup → "Go" → "Empty Template Cache".

Uninstallation Process

If you no longer wish to use Lagom One Step Order Form For WHMCS, you may safely uninstall the module.

To successfully and safely remove the module from your system, follow these steps:

  1. Deactivate the addon module: Navigate to System Settings → Addon Modules, and find Lagom One Step Order Form. Click on Deactivate.
  2. Remove all tables that begin with LagomOrderForm_ from the database.
  3. Next, delete all the listed below files:
    • The folder containing the Lagom One Step Order Form module: modules/addons/LagomOrderForm
    • The order.php file.
  4. Finally, remove the RewriteBase rule that you must have added to the htaccess file
    (For additional information, please refer to the details provided in points 7 and 8 of the installation instructions)

That's it! The module is now completely uninstalled.

Upgrade Guide

Seeking a solution that offers greater flexibility, customization tailored to your precise needs, and unrestricted availability?
There is an option that not only proves to be cost-effective in the long run but also includes prioritized support services, making it a truly valuable investment.

Opt for the Open Source version of your Lagom One Step Order Form For WHMCS module to unlock these benefits.
Simply click on either the Get Source Code or Upgrade To Lifetime button found on the product's page in our client area to complete the one-step upgrade process, with a dedicated discount already applied.

Follow a comprehensive guide covering the transition process, the advantages it brings, and step-by-step instructions on what to do next after the order has been successfully finalized.

Common Problems

1. When you have problems with connection, check whether your SELinux or firewall does not block ports.
2. Third-party modules that manipulate or affect the ordering process pages will NOT be compatible with Lagom WHMCS One Step Order Form.
Lagom WHMCS One Step Order Form is a separate module, it works independently and it is NOT based on any default WHMCS order process template.

The module is not yet compatible with the below modules from ModulesGarden offer:

  • Payment Gateway Allocator For WHMCS (compatible soon)
  • Product Cross-Selling For WHMCS (compatible soon)
  • Domain Orders Extended For WHMCS
  • Resellers Center For WHMCS
  • Multibrand For WHMCS
  • Stripe SEPA Payments For WHMCS
  • Client Area Designer For WHMCS (this integration is not scheduled)
  • SMS Center For WHMCS
  • Product Free Trial Manager For WHMCS
  • Recurring Contract Billing For WHMCS
3. The module is compatible with WHMCS v8.8 yet please be aware that the new WHMCS On-Demand Renewals feature is not yet supported.
Please follow the module changelog for information on the full compatibility.
WHMCS Modules
WHMCS Widgets
cPanel Modules
Lagom One Step Order Form For WHMCS