How Knack Works
Design Your Database
Manage Your Records
Build Your Live Application
View and Share Your App
Do More With Knack
Connect Related Data
Users & Access
Calculations & Logic
Emails & Notifications
Search & Queries
Reporting & Dashboards
E-Commerce & Payments
Objects & Connections
Plan Your Connections: Complex Example
Working With Objects
Plan Your Connections: Simple Example
Plan Your Objects
Use Connections in Your App
Connecting Records Together
Connections: Troubleshooting & FAQs
Numeric Equation Functions
Date Equation Settings
Numeric Equation Settings
Text Formula Functions
CSV Format Guide for Importing
Working with Records
Deleting a Page That's Being Linked to
Working with Pages
Navigating the Page Preview
Printing Pages & PDFs
Table Column Settings
Source: Which Records Will the View Display
Using Action Links
Combining Fields from Connected Records in Views
Using Record Rules
Using Display Rules
Using Submit Rules
Users & Logins
Users and the Page Menu
Manage Roles & Permissions
Single Sign-On with Google, Facebook, Twitter, and Custom
Manage User Records
Logins and Registrations
Live App Security Settings: HIPAA Plans
Live App Security Settings
Tasks & Emails
How do I cancel my Knack account?
I'm over the storage limit for my account. How do I add more storage or get under the limit?
Need account access or to transfer account access because account owner or colleague left the company
I'm over the record limit for my account. How do I add more records or get under the limit?
Is there an option to pay via invoice, check, wire transfer, or something other than a credit card?
How do I freeze or pause my Knack account?
Where can I find a copy of my receipt or invoice?
How do I add more API calls to my account?
How do I change the favicon for my app?
How do I backup or export my apps and data?
How can I track what users are doing in my app?
How do I remove the "Powered by Knack" logo at the bottom of my app?
How do I give Builder access to a colleague or developer for one of my apps?
How do I white label my app?
How do I copy an app from my account to another account?
How do I show multiple dates on a calendar?
How do I add a logo to my app?
How do I find the most recent date from a connected object?
How do I create a field that always shows today's date?
Can I share or connect data between apps?
How do I create an "If, Then" or conditional equation?
How do I merge my apps, or copy pages, objects, or other app elements between my apps?
The menu isn't showing for my app on mobile devices. How do I fix that?
Is there a way to have new users be automatically logged-in after they register?
How do I bulk upload or import multiple files?
How do I move or copy fields or data from one object to another?
How can I show a customer's payment history if I'm collecting payments through my Knack app and through cash or check?
Is there a way to add a display rule to multiple columns at one time instead of having to update each column individually?
Do I need a separate user role object for my Vendors, Customers, Employees, Contacts, etc?
How can I set up my app so users see only their own data?
Can I combine two date fields into a single date field? For example, combining a start and end date into a single field?
Does Knack offer a service for building apps or have developers I can hire?
How do I bulk upload or import multiple images?
How can I change the color of something in my app?
Is it possible to display more than 100 records at a time on a table, list, or search view?
Can I migrate or transfer data from Zoho, Quickbase, or TrackVia?
Can I add chat or messaging to my app?
Can I sell my Knack apps?
Can I use Knack on mobile devices?
Do you have a sandbox or developer environment?
Can I send SMS or text messages using Knack?
Can I integrate Knack with other data, products, and services?
Can I create invoices and accept payments?
Can I have an app in a language besides English?
Can I email PDFs or other attachments to users with Knack?
Can I add Google Analytics to my Knack app?
Can I migrate my Access, Filemaker, SQL, or other databases?
Can I prototype for others?
Can I customize the look and feel of my Knack pages?
Can I use a barcode or credit card scanner with Knack?
Does Knack offer access to beta features?
How secure is Knack?
Does the signature captured through a signature field constitute a legally binding signature?
Does Knack offer a partner program?
How does Knack work on mobile devices? Is it mobile-friendly? Can users download my apps?
Is Knack GDPR compliant?
Storing sensitive data (credit cards, social security numbers, etc.)
Will Knack sign an NDA (Non-Disclosure Agreement)?
Which browsers do you support?
How do I batch download all of the images and files In my app?
I'm seeing an odd character when importing data. How can I get rid of it?
How do I update existing data using an import?
My import is failing or getting stuck. What do I do?
Can I undo or reverse an import?
I'm having trouble importing into a specific type of field. What can I do?
Some of my fields aren't importing correctly. How can I fix that?
I'm having trouble importing into a connection field. What can I do?
Can I import something other than data? Like objects, pages, views, etc?
My import is taking a long time. Can you take a look?
I'm getting an error when importing. What do I do?
Do the validation rules on fields trigger when importing data?
Can I schedule or automate imports?
Can my users import data from the live app, instead of going through the builder/back-end?
I am importing data for the first time. How do I do that?
Can I import data into more than one object at the same time?
How To Guides
Add Functionality to Your Live App
How To Create Discount Codes
Create an Add To Favorites Feature
How to Access Private Records Without a Login
Accept Payments in a Live App
Manage Your Records
Use an Edit Form to Create Records If They Don't Exist
Track Which User Last Updated a Record
Copy a Record Using Record Rules
Track When Records are Created and Updated
Create a Version History for Records
Use Zapier to Insert Connected Records
Work with Connected Records
How to Show Multiple Fields in Your Connection Drop-Down
Showing Parent-Child Records in the Live App
How to Create Dynamic Dropdowns in Forms
Add Read-Only Fields to a Form
How to Change the Layout of Forms
Create a Multi-Part Form
How to Allow Users to Add New Options in Forms
How to Add Instructions to a Form
How to Customize the Text on a Submit Button
How to Automatically Capture a User’s Location on a Form
How to Use URL Variables to Pre-Populate a Form
How to Add a Map to a Details View
How to Add Connection Links to Views
How to Add Inline Editing to a Table
Create a Print-Friendly Invoice Page
How to Click on an Image to Go to Another Page
How to Add Groupings to a Table
Users & Logins
Force Users to Reset Their Passwords
Save a User's Payment Method
Create a Single Login Page for Multiple User Roles
Add Read-Only Access For Users
Show Records Connected To The Logged-in User's Company Or Other Group
Show Records Connected to the Logged-in User
Create an Admin User Role to View All Records
Workflow & Automations
Add a Pipeline to Your App
Create a Registration Form with Limited Availability
Add Stages to Your App
Store Multiple Images or Files for Individual Records
Use Multiple Image Sources for a Single Image Field
Create a Button or Link that Updates a Field to a Custom Value
Notify a User That an Item is Ready for Review
Add Assignments to Your App
Approve New Records Before Displaying Them
Add Notification & Reminder Emails to Your App
Add Status Indicators to Your App
Logic, Equations & Formulas
Start an Auto Increment Field from Any Number
Display a Message When a Deadline is Approaching
Generate Simple Numeric Barcodes Automatically
How to Set a Random ID
Calculate Age in Years from a Birthday
How To Number Line Items
Show Upcoming Birthdays
How to Extract the Start and End Dates from a Date Field
How to Display Multiple Date Formats Using a Single Date Field
Reports, Queries, and Summaries
Build an Inventory Manager App
Build a Quiz App
Build a Warehouse Manager App
Build a Member Directory
Build an Orders App
Build a Map Directory or Store Locator App
Images & Files
Manage Your Account
Manage Your Account
About Knack Accounts
Account Plans and Billing
Managing Your Apps
Managing Your Account Settings
Sharing Apps with Shared Builders
App Settings: Map Provider
Script Attack Protection: Whitelisted Custom Code Elements and Attributes
Script Attack Protection: Protected Areas
Security & Infrastructure
Security Best Practices
Builder Security Settings for All Knack Plans
Builder Two-Factor Authentication
Table of Contents
Updated by Danielle Kellogg
Knack includes payment features that can be seamlessly integrated with other Knack features like user logins and workflows. You can use this to build everything from single payment forms to rich E-Commerce applications.
For example, you can:
- Accept donations for your charity or non-profit
- Create member areas that are only accessible after users pay for membership
- Build self-service portals that allow customers to view and pay invoices or update payment information
In this article, we will review examples of how you can add E-Commerce features to your apps.
E-Commerce & Payment Examples
Whether you sell products or services, you need a way to track customer orders and accept payments.
You can see a quick and easy example of this in our Event Registration Example app:
Some customer orders can include multiple products or services and you need to charge for all items in one order.
For example, in our Bakery Manager Example app, users can add multiple baked goods to their order and then pay for that order.
Saving Payment Information
You can let customers save their payment information so they can easily make future payments. You can also use the saved information to make payments on their behalf.
Here’s how that works in our Customer Payment Portal Example app:
Charge on Behalf of Customers
Some services require hourly billing or dynamic billing approaches where you need to charge on behalf of your customers as services are rendered.
For example, you may need to charge customers half upfront for a service and the other half upon completion.
Customer Self-Service Portals
A self-service portal makes it easy for your customers to manage their own requests and billing without having to contact you.
For example, in our Customer Payment Portal Example app customers can submit service requests, manage their payment information, and pay active invoices.
- See it in action in the Customer Payment Portal Example app
Paid Member Access
You can create a paywall or payment gateway that restricts access to specific information or parts of your app until a user has paid for access.
A typical example is charging a membership registration fee and hiding paid areas from non-members.
Fundraising and Donations
When fundraising for a cause or charity, you need an easy way to track and accept donations from donors.
For example, you can have a donation portal that allows donors to donate to your cause and to store their credit card information so that future donations are a simple, one-click process. Here’s how it works in our Online Donation Portal Example app:
- See it in action in the Online Donation Portal Example app
Dynamic Cost Calculations
Calculating the cost of a purchase can include the base price plus additional items like taxes, fees, and discounts.
A common example is giving customers a discount for bulk purchases. Here’s how that could work in the Bakery Manager Example app:
While we cover a few popular use cases for integrating E-Commerce into your apps, there are many more. There are also other features that can add more value to your use of E-Commerce features. See the articles below for more resources.
- All the examples above require users and access
- However, there are use cases where you may not want users to log in to make a payment: How to Simulate a Login without Users
- All these examples can extend to include Reporting
- Several workflows can be added to existing systems like sending a receipt after a transaction is complete
While E-Commerce in Knack is powerful, there are certain features which are currently not available:
- Subscriptions & Recurring Payments
- Peer-to-peer payments
- Shopping cart