> ## 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.

# Delete Custom Field option

> Delete a Trello Custom Field dropdown option.

`trello.deleteCustomFieldOption` permanently removes one option from a list-type Custom Field.

```ts automations/delete-trello-custom-field-option.automation.ts theme={null}
import { automation, onDashboardRun } from "automate.ax"
import { trello } from "automate.ax/trello"

export default automation("Delete Trello Custom Field option", () => {
  onDashboardRun({ title: "Delete Trello Custom Field option" })
  trello.deleteCustomFieldOption({
    customFieldId: "custom-field-id",
    optionId: "option-id",
  })
})
```

Provide stable `customFieldId` and `optionId` values. Optional second argument `{ account }` selects a Trello binding. Returns `Signal<{ customFieldId: string; deleted: true; optionId: string }>`.