> ## Documentation Index
> Fetch the complete documentation index at: https://docs.automate.ax/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Automate.ax automations are TypeScript programs.
> Use Bun for installation and command examples.
> Use Automate.ax for the product name and automate.ax for the package, CLI, and domain.
> Treat documented public APIs as current; do not invent transitional or deprecated names.

# Update category

> Updates and returns an Outlook master category.

`outlook.updateCategory` updates and returns an Outlook master category.

## Example

```ts automations/outlook-update-category.automation.ts theme={null}
import { automation } from "automate.ax"
import { outlook } from "automate.ax/outlook"

export default automation("Update category", () => {
  outlook.updateCategory({ categoryId: "category-id", color: "preset4" })
})
```

## Inputs

Pass `{ categoryId: "category-id", color: "preset4" }`. The optional second argument `{ account }` selects a Microsoft binding.

## Output

Updates and returns an Outlook master category.

Microsoft Graph requires the scopes declared by the action. IDs are opaque and should be passed through unchanged.