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

# Update Card Custom Field

Setting, updating, and removing the value for a Custom Field on a card.
Use the "Get Card Custom Fields" & "Get Custom Field By ID" actions in order to find out which fields in the action should be filled for the specific custom field.

## Parameters

<div className="integrations-table">
  | Parameter       | Description                                                           |
  | --------------- | --------------------------------------------------------------------- |
  | Card ID         | ID of the card that the Custom Field value should be set/updated for. |
  | Custom Field ID | ID of the Custom Field on the card.                                   |
  | ID Value        | -                                                                     |
  | Value Checked   | -                                                                     |
  | Value Date      | -                                                                     |
  | Value Number    | -                                                                     |
  | Value Text      | -                                                                     |
</div>

## Example Output

```json theme={"dark"}
{
	"id": "63762610ad796c0051a8b1fa",
	"idValue": "637625f3de440e0093e2156f",
	"idCustomField": "637625f3de440e0093e2156d",
	"idModel": "6376116f19cb6d0015e43db0",
	"modelType": "card"
}
```

## Workflow Library Example

[Update Card Custom Field with Trello and Send Results Via Email](https://library.blinkops.com/workflows/update-card-custom-field-with-trello-and-send-results-via-email)

<div className="iframe-wrapper">
  <div className="iframe-media">
    <img src="https://mintcdn.com/blinkops-2/ojHYuDeYX5FWuN8a/img/Icons/play-box.svg?fit=max&auto=format&n=ojHYuDeYX5FWuN8a&q=85&s=b8af968e71438a9499c3223c9bd29fb2" alt="Workflow Library" width="16" height="16" data-path="img/Icons/play-box.svg" />

    Preview this Workflow on desktop
  </div>

  <iframe className="iframe" src="https://library.blinkops.com/workflows/update-card-custom-field-with-trello-and-send-results-via-email/canvas" />
</div>