# Update a Text Field Value

Use the REST API to update the value stored in a custom field with `text` type.

## Summary

Make a POST request to the following endpoint: `/api/issues/{issueID}?[fields]`

## Step-by-Step

Procedure:

1. To update a custom text field in an issue, send a POST request to the target issue. You can reference the issue by issue ID or issue entity ID.

2. In the `fields` request parameter, specify the attributes of the returned entity that you want to get in response. For example, you can request the `id` and `name` of the target custom field along with its updated value.

3. In the request body, pass a JSON with the `name`, `$type`, and `value` for the text field that you want to update.

So, the final request is:

```CURL
curl -X POST 'https://example.youtrack.cloud/api/issues/NP-98?fields=customFields(id,name,value(text))' \
-H 'Accept: application/json' \
-H 'Authorization: Bearer <YouTrack_token>' \
-H 'Content-Type: application/json' \
-d '{"customFields":[{"name":"Customer","$type":"TextIssueCustomField","value":{"text":"Valued Customer"}}]}'
```

4. To confirm that the target issue text field was set to the corresponding value, let's check the response from the server:

```JSON
{
    "customFields": [
        ...
        {
            "value": {
                "text": "Valued Customer",
                "$type": "TextFieldValue"
            },
            "name": "Customer",
            "id": "194-4",
            "$type": "TextIssueCustomField"
        }
    ],
    "$type": "Issue"
}
```