eCommerce Shopping Cart Software
Shopping cart software for digital delivery, subscription and shipped products.
Shopping Cart Software Features Full Shopping Cart Feature List
Modular Merchant includes a powerful feature set, including many features suggested directly by our clients. We love to build software, and we love building things our clients can actually use! It's win-win.

— Too much good stuff to absorb? Focus on just the latest & greatest features.

Content Management (CMS)
Content Management (CMS)
  • An unlimited number of custom web pages can be added to your store.
  • Custom web pages are compatible with HTML forms for contact forms, feedback forms, etc.
  • Custom web pages have SEO-friendly URLs.
  • A WYSIWYG (What You See Is What You Get) editor is built-in for editing custom web pages.
  • Create "members only" pages, restricted to certain groups of customers.
  • Fully integrated content management system, built-in to the shopping cart's Administration Area.
  • Pages are automatically created for all products, vendors and categories.
  • Publish a privacy policy, return policy, etc.

Customers & Groups
Customer Management
  • An account is automatically created for customers the first time they place an order - separate "registration" step not required.
  • Create Customer Groups based on purchase history or current product subscriptions.
  • Create a "registration" form to allow customers can create accounts without making a purchase.
  • Create members-only areas on your own website, which only selected customers can access.
  • Customers can have multiple shipping addresses, and ship to multiple recipients in a single order.
  • Customers can review products.
  • Customers have access to a secure account area, where they can manage their contact, billing and payment information.
  • Import and export customer records.
  • Modify product prices based on the Customer Groups a shopper belongs to.
  • Offer wholesale vs. retail pricing.
  • Users may belong to multiple Customer Groups.


Hosting & Security
Hosting & Websites
  • Accounts hosted in a secure, PCI Compliant server environment.
  • CISCO Firewall Protection.
  • Dedicated IP address provided.
  • Download/Upload files via FTP.
  • Entire store database backed up nightly.
  • FTP Access is included with all hosting plans.
  • Power backup generator.
  • Premium, tier-1 ecommerce hosting: 99.9% uptime.
  • SSL certificate encryption utilized.


Images & Photos
Images & Photos
  • Apply an unlimited number of images per product.
  • Automatically create thumbnails when uploading images.
  • Basic and advanced options for uploading graphics.
  • Customize all product images, captions and "alt" text.
  • Display image thumbnails on product pages.
  • Open large images in a popup window.
  • Resize images automatically.
  • Share images between products.
  • Upload images as single files or in a zip archives full of images.
  • Upload images individually or in batches.
  • Upload many images at once.


Inventory & Stock Control
Inventory & Stock Levels
  • Hide or make products unpurchasable when low/out of stock.
  • Inventory levels update in real-time when products are purchased.
  • Products can deduct multiple units from inventory. (ie: "Six-Pack" product deducts six cans from inventory.)
  • Products can have inventory levels disabled. (Infinite stock.)
  • Products can share multiple inventory levels.
  • Receive "Low Stock" alerts.
  • Set different "low stock" warning levels for each product.
  • Set stock levels for each product variation.
  • Update product inventory levels in bulk.


Marketing & Promotion
Marketing & Promotion
  • Add one or more products to customer's cart with one click.
  • Allow wholesale discounts.
  • Built-in category breadcrumb navigation.
  • Built-in multi-tier Affiliate Marketing system.
  • Create "buy one get one free" promotions.
  • Create "free shipping" coupons.
  • Create "free shipping" promotions.
  • Create "save $X on orders over $Y" promotions.
  • Create a newsletter subscription form in your store.
  • Create bulk discounts per product, category or vendor.
  • Create coupons in which the customer retains any leftovers.
  • Create coupons that can be used multiple times.
  • Create coupons to be used by groups or individuals.
  • Create coupons with expiration dates.
  • Create printable gift certificates.
  • Customer Wish Lists can be public or private.
  • Customer's address book saves all their billing info and shipping addresses.
  • Customers can create public and private Wish Lists.
  • Design gift certificates in a WYSIWYG editor.
  • Display best sellers, suggested products and cross-sell items.
  • Display new and featured products.
  • Enable free shipping on a per-product basis.
  • Generate redeemable coupon codes and gift certificates.
  • Import and export products in multiple spreadsheet formats.
  • Manage complex promotional rules with the store's Event Engine.
  • Manage newsletter mailing lists.
  • Offer incentives with a Reward Points loyalty program.
  • One-page checkout system - fast and responsive.
  • Optionally limit one coupon per order.
  • Place customer orders within the store's Administration Area.
  • Publish order status and updates.
  • Resend invoices to customers via email.
  • Review and rank products using a list of criteria you specify for each product.
  • Run concurrent sales events.
  • Subscribe customers to one or more autoresponder email series.
  • Track coupon usage.
  • Track shipments in real time.
  • Track which phrases your customers are searching for.
  • Upsell/Downsell products with no-risk 1-Click Upsell system after the order is placed.


Orders & Checkout
Orders & Checkout
  • Add multiple products to cart with a single link.
  • Automatically email customers when their order's shipping status changes.
  • Completely customizable checkout process: Single page checkout or as many pages as needed.
  • Customers can track their shipments on your store website.
  • Estimate shipping fees.
  • Generate printable and email receipts.
  • Generate tracking numbers for shipments.
  • Issue refunds and store credits.
  • Manage multiple shipments per order.
  • Manage pre-orders, back-orders, returns, partial payments, etc.
  • Open and close your store with just a click.
  • Optionally require agreement to a Terms of Service during checkout.
  • Place "add to cart" links to any website, email message or Twitter post.
  • Set minimum and maximum dollar value for orders.
  • Set minimum and maximum order quantities per product.
  • Specify a starting number for orders and customers.
  • Unlimited custom checkout fields in a variety of formats: text fields, check boxes, radio buttons or list menus.


Payments & Shipping
Payments & Shipping
  • Accept payments by credit card, PayPal and Google Checkout.
  • Add a markup to shipping rates.
  • Add additional shipping fees per product.
  • Automate recurring payments.
  • CVV2 (Credit card security code) support.
  • Capture credit card funds either at checkout or later when order shipped.
  • Create additional shipping fees per geographic zone.
  • Create credit accounts for customers.
  • Create custom shipping rates.
  • Create multiple dropshippers.
  • Customers can create multiple shipping addresses.
  • Customers can use multiple shipping addresses in one order.
  • Display estimated shipping fees before checkout.
  • Display shipping options by customer's geographic location.
  • Display shipping options by order's value, product quantity or weight.
  • Dropship from multiple warehouses.
  • Generate UPS and FedEx labels within store's Administration Area.
  • Issue refunds from within store's Administration Area. ( only.)
  • Make partial shipments.
  • Print shipping labels directly from within the store's Administration Area.
  • Real-time shipment tracking.
  • Real-time shipping rates from FedEx, UPS and U.S.P.S.
  • Record cash, check, money order and credit account payments.
  • Secure https checkout.
  • Sell downloads using store's built-in secure distribution system.
  • Set customers and/or products to be tax exempt.
  • Set rules to hide shipping options.
  • Set rules to make shipping options free.
  • Set your store's default currency.
  • Take orders over the phone.


  • 24/7 support hotline for emergencies.
  • An extensive Knowledge Base contains tutorials and the answers you seek.
  • Each page in the Administration Area links directly to its knowledge base documentation.
  • Free software updates released on a regular basis, and they install automatically and invisibly: no file uploads required.
  • Free tech support by phone, email and a built-in Support Ticket system.
  • Free walk through by phone to help new accounts get up and running smoothly.
  • Tech support located in-house - nothing outsourced.


Tax Rates & Settings
Tax Rules
  • Create an unlimited number of tax rules.
  • Create cumulative tax rules.
  • Create dollar-based or percentage-based tax rules.
  • Import/export Tax Rules for bulk editing.
  • Sales tax report included.
  • Set tax rules by state, country or zip code.
  • Set taxes by geographic zones.
  • Taxes shown in receipts, invoices, etc.
  • Taxes update in store automatically as customer shops.
  • Use dynamic tax rules or a flat tax option.
Products & Merchandising
Product Management
  • Add an unlimited number of options (size, color, etc) to products.
  • Add gift wrapping options to products, with optional additional fee.
  • Add images and/or videos to product descriptions.
  • Add product options in various formats: text fields, checkboxes, radio buttons, dropdown & list menus.
  • Apply an unlimited number of images to each product.
  • Assign products to multiple categories.
  • Assign products to multiple vendors.
  • Batch update inventory levels and pricing.
  • Create an unlimited number of product categories and subcategories.
  • Create an unlimited number of product fields and attributes.
  • Customize the URL, page title, and meta tags for every product page.
  • Engage customers with product reviews, rankings and comments.
  • Establish a future release date for downloads.
  • Exclude products from store's search engine.
  • Hide products from the public storefront.
  • Import/export products, images, options, and much more.
  • List "Featured Products" on any store page.
  • List "New Products" to highlight them.
  • Make products shipping exempt.
  • Manage product inventory levels.
  • Optionally require registration to view certain products.
  • Optionally restrict downloads to customers in geographic zones.
  • Optionally restrict product access to certain Customer Groups.
  • Product options can adjust the product's price.
  • Put products on sale.
  • Securely distribute downloads to prevent "leeching".
  • Sell product bundles - one product comprised of several other products.
  • Sell shipped products, services and downloads.
  • Set minimum and maximum purchase quantities per-product.
  • Set multiple pricing levels per-product.
  • Set products to require "call for pricing".
  • Specify COGS and MSRP for use in sales reports.
  • Specify product search keywords.
  • Specify product templates globally or on a per-product basis.
  • Specify product weight for real-time shipping rates.
  • Specify shipping exempt products.
  • Specify short and long product descriptions.
  • Specify tax exempt products.
  • WYSIWYG editor for product descriptions.
  • WYSIWYG editor supports cut/copy/paste.


Intelligent Reports
  • Abandoned Carts report
  • Account Activity report
  • Best Selling Products report
  • Customer Acquisition report
  • Customer Order Histories
  • Daily Snapshot report
  • Declined Orders report
  • Disk Space usage
  • Download Usage report
  • Email Activity report
  • Product Performance report
  • Projected Revenue report
  • Sales Statistics report
  • Sales Tax report
  • Search Engine report
  • Searchable Order History
  • System Logs report
  • Traffic Statistics report
  • Vendor Royalties report


Search Engine Optimization
Search Engine Optimization
  • Generate an HTML sitemap for use with Google and other search engines.
  • Manage SEO optimization options on a per-page level.
  • Manage the Google sitemap file within the store's Administration Area.
  • Manage the robots.txt file within the store's Administration Area.
  • New SEO optimizations and updates are added on a regular basis.
  • Optimized HTML code: CSS and Javascript code kept in separate files.
  • Search engine friendly URLs for categories, custom pages, products, search result and vendor pages.
  • The store-generated HTML code is easily read by search engine spiders.
  • Toggle SEO friendly links on or off.


Social Media Marketing
  • Admin actions recorded in a searchable report.
  • Control the display of credit card numbers.
  • Create multiple store admins.
  • Create protected "members only" websites.
  • Daily file scans are performed on each website on all servers.
  • McAfee PCI Compliance Concierge service available.
  • Proactive security measures against hackers, DDOS and brute-force attacks.
  • Set security levels for each store admin.
  • Strict security policies to protect information and privacy.
  • Supports full HTTPS environment and SSL security protocols.


Store Design
Setup & Design
  • 100% HTML and CSS templates, no PHP programming required.
  • 100% web-based store administration.
  • All-in-one shopping cart and website solution — storefront,
  • Administration, customers, products, sales, coupons, hosting, orders, fulfillments, and oh-so much more.
  • Assistance in migrating your current shopping cart is available.
  • Browse storefront pages by category, vendor, price, recency, and search score.
  • Choose from a library of pre-made store designs, or create your sets of templates using common HTML.
  • Compatible with all popular web browsers.
  • Create 301 redirects.
  • Create a unique storefront design for mobile devices.
  • Create unique designs for each individual product, category or vendor.
  • Custom Programming is available to specialize your cart.
  • Customizable navigation.
  • Customize every page of your storefront.
  • Customize every store email.
  • Customize page titles, meta tags and other content globally or page-by-page basis
  • Customize the URL for every category, custom, product and vendor page in your storefront.
  • Customize the structure of SEO friendly URLs.
  • Design your store to match your website.
  • Display best selling products.
  • Display products in rows, grids or lists.
  • Display recently viewed products.
  • Display special offers and promotions.
  • Edit HTML, CSS and Javascript in your browser or in editors such as Dreamweaver.
  • Edit store templates in your browser or in editors such as Dreamweaver.
  • Enjoy full creative control with complete access to modify every the HTML, CSS and JavaScript that controls the store's design.
  • Import products, customers and much more.
  • Integrate your store into your website.
  • Link your shopping cart to your existing website.
  • List Featured Products on any store page.
  • List products, categories and subcategories on storefront pages.
  • No graphic design expertise is necessary.
  • No programming is necessary, from start to finish.
  • Preview and test store designs before going live with them.
  • Professionally-made templates are available.
  • Quick, easy one page checkout.
  • QuickCode Tag system - add advanced functionality without touching any JavaScript or PHP code.
  • Quickly apply a new design to your entire store with just a click.
  • Shop and buy on all popular mobile devices: iPad, iPhone, Android, etc.
  • Storefront includes powerful search engine.
  • Templates are compatible with any web page editing software.
  • The phrases customers search for in your storefront are logged.
  • Upload a favicon to customize bookmarks.
  • Upload your logo quickly and easily.
  • User-friendly web-based Administration Area control panel included.
  • WYSIWYG editor for adding an unlimited number of custom content pages.
  • Web design services are available. Hire Modular Merchant to design your store to match your website.
  • Web-based WYSIWYG template editor for templates, emails and product descriptions.


3rd-Party Integration
Third-Party Integration

Integrated Services

  • Add your storefront to your Facebook page.
  • Cancel FedEx and UPS shipments from within your store's Administration Area with just a click.
  • Compatible with third-party Affiliate programs.
  • Deliver ebooks wirelessly to Amazon Kindle and Barnes & Noble Nook, and other mobile devices.
  • Export orders to QuickBooks.
  • Export orders to Stone Edge.
  • Facebook widgets: add "Like" buttons, "Share" buttons and comments to your store's pages.
  • Generate printable shipping labels from FedEx and UPS.
  • Google Analytics integration is built-in and ready to use.
  • Place "Add to Cart" links on websites, email, Facebook and Twitter.
  • Real-time shipping rates from FedEx, UPS and U.S.P.S.
  • Receive shipment tracking ID numbers from FedEx and UPS.
  • Track Twitter feeds for multiple search phrases within the store's Administration Area.

Supported Payment Gateways

  • BluePay
  • CenPOS
  • First Data
  • Google Checkout
  • Link Point (now First Data)
  • Manual / Offline processing
  • Network Merchants
  • Optimal Payments
  • PayFlow Pro
  • PayPal Website Payments Pro
  • PayPal Website Payments Standard
  • Pivotal Payments
  • SecurePay
  • USA ePay (BETA relase)
  • Virtual Merchant
  • More gateways added on a regular basis.










In this section
Content Management (CMS)
Customer Management
Hosting & Websites
Images & Photos
Inventory & Stock Levels
Marketing & Promotion
Orders & Checkout
Payments & Shipping
Product Management
Search Engine Optimization: SEO
Setup & Design
Tax Rules
Third-Party Integration
More in Features...
Latest & Greatest Features
Full Feature List
Shipping Features
In Detail: Digital Delivery
In Detail: Subscription Products
Related section: Services
File Storage Areas
Hosting Options
PCI Certification Service
Shopping Cart Software
SSL Certificates


2001 - 2024

Pushing your cart for 23 years.