Manage Your Records
How Knack Works
Design Your Database
Do More With Knack
View and Share Your App
Build Your Live Application
Connect Related Data
Reporting & Dashboards
E-Commerce & Payments
Search & Queries
Emails & Notifications
Calculations & Logic
Users & Access
Working with Pages
Deleting a Page That's Being Linked to
Printing Pages & PDFs
Objects & Connections
Plan Your Objects
Plan Your Connections: Complex Example
Plan Your Connections: Simple Example
Connecting Records Together
Use Connections in Your App
Working With Objects
Connections: Troubleshooting & FAQs
Live App Design
Embed Your App
Integrate with Formstack Documents
Integrate with Zapier
Integrate with Integromat
Working with Icons
Other Customization Options
Using Action Links
Using Record Rules
Table Column Settings
Combining Fields from Connected Records in Views
Source: Which Records Will the View Display
Using Display Rules
Using Submit Rules
Working with Records
CSV Format Guide for Importing
Tasks & Emails
Users & Logins
Live App Security Settings
Live App Security Settings: HIPAA Plans
Manage Roles & Permissions
Manage User Records
Users and the Page Menu
Single Sign-On with Google, Facebook, Twitter, and Custom
Logins and Registrations
Working With Support
What is a dedicated support manager?
Is there an option to pay via invoice, check, wire transfer, or something other than a credit card?
Where can I find a copy of my receipt or invoice?
I'm over the storage limit for my account. How do I add more storage or get under the limit?
I'm over the record limit for my account. How do I add more records or get under the limit?
How do I freeze or pause my Knack account?
Need account access or to transfer account access because account owner or colleague left the company
How do I cancel my Knack account?
How do I add more API calls to my account?
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 change the favicon for my app?
How do I backup or export my apps and data?
How do I white label my app?
How do I copy an app from my account to another account?
How can I track what users are doing in my app?
How do I find the most recent date from a connected object?
How do I move or copy fields or data from one object to another?
How do I add a logo to my app?
How can I change the color of something in my app?
The menu isn't showing for my app on mobile devices. How do I fix that?
How do I create a field that always shows today's date?
How do I show multiple dates on a calendar?
Is there a way to add a display rule to multiple columns at one time instead of having to update each column individually?
How can I show a customer's payment history if I'm collecting payments through my Knack app and through cash or check?
Can I combine two date fields into a single date field? For example, combining a start and end date into a single field?
Is it possible to display more than 100 records at a time on a table, list, or search view?
Is there a way to have new users be automatically logged-in after they register?
Do I need a separate user role object for my Vendors, Customers, Employees, Contacts, etc?
How do I create an "If, Then" or conditional equation?
Does Knack offer a service for building apps or have developers I can hire?
How can I set up my app so users see only their own data?
How do I bulk upload or import multiple images?
How do I bulk upload or import multiple files?
How do I merge my apps, or copy pages, objects, or other app elements between my apps?
Can I share or connect data between apps?
Can I customize the look and feel of my Knack pages?
Can I migrate or transfer data from Zoho, Quickbase, or TrackVia?
Can I add Google Analytics to my Knack app?
Do you have a sandbox or developer environment?
Can I integrate Knack with other data, products, and services?
Can I have an app in a language besides English?
Can I use Knack on mobile devices?
Can I create invoices and accept payments?
Can I migrate my Access, Filemaker, SQL, or other databases?
Can I use a barcode or credit card scanner with Knack?
Can I prototype for others?
Can I send SMS or text messages using Knack?
Can I email PDFs or other attachments to users with Knack?
Can I add chat or messaging to my app?
Can I sell my Knack apps?
Does the signature captured through a signature field constitute a legally binding signature?
How does Knack work on mobile devices? Is it mobile-friendly? Can users download my apps?
Storing sensitive data (credit cards, social security numbers, etc.)
How secure is Knack?
Will Knack sign an NDA (Non-Disclosure Agreement)?
Does Knack offer access to beta features?
Does Knack offer a partner program?
Is Knack GDPR compliant?
How do I batch download all of the images and files In my app?
Which browsers do you support?
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?
I'm seeing an odd character when importing data. How can I get rid of it?
Can I import something other than data? Like objects, pages, views, etc?
My import is failing or getting stuck. What do I do?
Can my users import data from the live app, instead of going through the builder/back-end?
Can I schedule or automate imports?
Can I import data into more than one object at the same time?
Can I undo or reverse an import?
I am importing data for the first time. How do I do that?
How do I update existing data using an import?
My import is taking a long time. Can you take a look?
I'm having trouble importing into a specific type of field. What can I do?
I'm getting an error when importing. What do I do?
Do the validation rules on fields trigger when importing data?
How To Guides
Users & Logins
Save a User's Payment Method
Force Users to Reset Their Passwords
Create a Single Login Page for Multiple User Roles
Show Records Connected To The Logged-in User's Company Or Other Group
Create an Admin User Role to View All Records
Add Read-Only Access For Users
Show Records Connected to the Logged-in User
Add Functionality to Your Live App
Manage Your Records
Use an Edit Form to Create Records If They Don't Exist
Use Zapier to Insert Connected Records
Copy a Record Using Record Rules
Create a Version History for Records
Track When Records are Created and Updated
Track Which User Last Updated a Record
Workflow & Automations
Add Stages to Your App
Add Status Indicators to Your App
Add Assignments to Your App
Notify a User That an Item is Ready for Review
Create a Registration Form with Limited Availability
Add a Pipeline to Your App
Create a Button or Link that Updates a Field to a Custom Value
Add Notification & Reminder Emails to Your App
Approve New Records Before Displaying Them
Store Multiple Images or Files for Individual Records
Use Multiple Image Sources for a Single Image Field
Work with Connected Records
How to Show Multiple Fields in Your Connection Drop-Down
Showing Parent-Child Records in the Live App
Logic, Equations & Formulas
How to Display Multiple Date Formats Using a Single Date Field
How To Number Line Items
Show Upcoming Birthdays
How to Set a Random ID
Display a Message When a Deadline is Approaching
Generate Simple Numeric Barcodes Automatically
Calculate Age in Years from a Birthday
How to Extract the Start and End Dates from a Date Field
Start an Auto Increment Field from Any Number
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 Connection Links to Views
How to Add a Map to a Details View
How to Add Groupings to a Table
Reports, Queries, and Summaries
Build a Quiz App
Build an Inventory Manager App
Build an Orders App
Build a Warehouse Manager App
Build a Member Directory
Build a Map Directory or Store Locator App
Create a Multi-Part Form
How to Change the Layout of Forms
How to Add Instructions to a Form
How to Customize the Text on a Submit Button
How to Limit an Uploaded File’s Size
How to Automatically Capture a User’s Location on a Form
How to Allow Users to Add New Options in Forms
How to Use URL Variables to Pre-Populate a Form
Add Read-Only Fields to a Form
How to Create Dynamic Dropdowns in Forms
Manage Your Account
Security & Infrastructure
Builder Two-Factor Authentication
Builder Security Settings for All Knack Plans
Security Best Practices
Manage Your Account
Table of Contents
- What are Fields?
- Manage Fields
Updated by Danielle Kellogg
- What are Fields?
- Manage Fields
What are Fields?
Knack uses objects and fields to structure your data.
Fields are used to define specific attributes of an object. You can think of a field like a spreadsheet column. You'll want to add a field for each attribute you want to store for your object.
Where do I access fields?
Fields are accessed from the Schema section in the Builder, in the Toolbox, by selecting the object where you want the field to be placed. The fields for that object are listed in the center column:
Add a Field
To add a field, click the “Add Field” button at the top when viewing an object and select a field type. Click here for more on the different field types.
First, give your field a name.
Field types are grouped like so:
- Text: Short Text, Paragraph Text, Rich Text, Text Formula
- Number: Number, Currency, Equation, Auto Increment, and Formulas
- Choice: Multiple Choice and Yes/No
- Date: Date/Time and Timer
- File: File, Image
- Personal: Name, Email, Address, Phone, Signature
- Other: Rating, Link, Signature, Connection
- Connection: Look-up
Edit a Field
From the "Schema" section in the Builder, select the object where you want to edit your field. To edit, click on the field or click the More Options menu (the “...” icon) and select “Settings” from the dropdown:
This will bring you to the field options.
Convert the Field Type
You can click on the field type text on the left and change (convert) the field type.
For example, if you change a field’s type from from short text to link, Knack will use the short text for the URL component of the link field.
But if you change a field from paragraph text to a file, Knack has no way to migrate that data, so that field’s data will be cleared for each record.
You’ll receive a message in green when you select a field type that’s compatible with the existing field type and a warning message in red when the field type isn’t compatible:
Delete a Field
From the "Schema" section in the Builder, select the object where you want to delete your field. To delete, click the More Options menu (the “...” icon) and select “Delete” from the dropdown. You will be asked to confirm before the field is deleted.
Move a Field
Click and drag any field up and down to change the order it will appear in.
Copy a Field
Fields in an object can be copied by clicking the More Options menu (the “...” icon) next to the object’s name and selecting the "Copy" option:
You'll be given the option to copy the fields from that object to a new or existing object. In order to copy the fields into the same object, select the Existing Object option and select the object from the dropdown:
Then you can select which fields you want to be copied:
Field Settings & Rules
Every field type has different settings options. Click here for more on the different field settings available.
Validation rules are used to prevent bad data input from your users. Read more about validation rules.
Conditional rules are used to set a field’s value based on values for other fields. Read more about conditional rules.
Use Fields in Your App
Fields can be used in a couple of different ways in your app.
Using Fields in the Builder
In the Records section of the Builder, all fields and their associated values are displayed. See the Working with Records article for details on how to edit the field value in a record.
Using Fields in the Live App
For any view created based on an object, that object's fields are accessible within that view. See the About Views article for information on how to set up views to display your field's values. The Live App's display of your field's values is also addressed in that article.
Notes & Troubleshooting
Order of Execution on Validation Rules & Conditional Rules
Validation rules are run before conditional rules on a field when a record is added or edited.
Connection fields are a special field type and are detailed in our Connecting Records Together article.