What is input variable? 

Input variables let a page receive data from outside itself — for example, a query parameter in the URL or a value passed in when the page opens. A common use is passing an ID so the page knows which record to load.

You can currently add two kinds of input variable:

• Text — for words, names, or IDs stored as text.
• Number — for numeric values.

Add an input variable

1. While on page, go to Page resources tab in the Pages menu:

2. Click the + button > Input variable

3. Give the variable a name and choose its kind (Text or Number)

4. Click Save. The new variable appears in the list of variables (under the Variables tab in Page resources)

Example use cases

Load a record

Say you have a page that shows the details of a single project. Instead of building a separate page for every project, you add a project_id input variable. When someone opens the page with a project ID in the URL (for example, /project?project_id=42), the page reads that value and uses it to load and display the right project.

The result: one reusable page for any project, rather than duplicating the same layout over and over.

Set the starting state of a page

Now imagine a "leave a review" page. From a list of completed orders, each order has a button that opens this page with a rating already chosen — for example, /review?rating=4. You add a rating input variable of kind Number, so the page reads that value and pre-selects four stars when it loads.

The reviewer can still change it, but they start from a sensible default instead of an empty form. This shows input variables aren't only for fetching data — they can also decide what a page looks like when it opens.