# Creating a Check

To create your first check open the Check Sheet app from one your spreadsheets as described in [Getting Started](/getting-started.md).

<div align="left"><figure><img src="/files/ttxPVP7NSvAHhnbEljaK" alt="" width="200"><figcaption></figcaption></figure></div>

You can then edit one of the example checks we've provided or click the green `Add Check` at the bottom of the app. If you have already created a check in this spreadsheet you'll see a green `Add` button at the top of your list of checks.

You'll then be presented with a blank form as shown below that allows you to enter the details of your check.

A check is made up of the following properties:

* **Name**: The name of your check, this will be shown in notifications
* **Sheet**: The sheet which contains the data you want to check
* **Range**: The single cell or range of multiple cells you want to check, specified in [A1 notation](https://developers.google.com/sheets/api/guides/concepts#a1_notation)
* **When**: The set of cells that must match if the range contains multiple, not visible for single cell ranges
* **Is**: The condition [condition](#conditions) that must be met for your check
* **Value**: The value you expect your condition to match against, it can be one of these [types](#values) and isn't visible for some conditions

A check can have many [notifications](#notifications) which have the following properties:

* **For**: For checks that contain a range of multiple cells this controls whether a notification will be sent for just the first match this is found or for every new match.
* **Send**: The [type of notification](#notifications) to send
* **Target**: The location the notification should be sent to, it can either be a static value such as an email address or a [dynamic target](#dynamic-notification-targets) i.e. a value retrieved from your spreadsheet


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://documentation.checksheet.app/workflows/creating-a-check.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.