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

# Update Email

> Update a scheduled email using the Resend Go SDK

## Update

Updates a scheduled email with the given parameters.

```go theme={null}
func (s *EmailsSvcImpl) Update(params *UpdateEmailRequest) (*UpdateEmailResponse, error)
```

### Parameters

<ParamField path="params" type="*UpdateEmailRequest" required>
  The update parameters.

  <Expandable title="UpdateEmailRequest fields">
    <ParamField path="Id" type="string" required>
      The unique identifier of the scheduled email to update.
    </ParamField>

    <ParamField path="ScheduledAt" type="string" required>
      New scheduled time for the email. Format: ISO 8601 (e.g., "2024-11-05T11:52:01.858Z").
    </ParamField>
  </Expandable>
</ParamField>

### Returns

<ResponseField name="response" type="*UpdateEmailResponse">
  <Expandable title="UpdateEmailResponse fields">
    <ResponseField name="Id" type="string">
      The unique identifier of the updated email.
    </ResponseField>

    <ResponseField name="Object" type="string">
      The object type ("email").
    </ResponseField>
  </Expandable>
</ResponseField>

### Example

```go theme={null}
package main

import (
	"fmt"
	"github.com/resend/resend-go/v3"
)

func main() {
	client := resend.NewClient("re_123456789")

	updateParams := &resend.UpdateEmailRequest{
		Id:          "4ef9a417-02e9-4d39-ad75-9611e0fcc33c",
		ScheduledAt: "2024-11-05T11:52:01.858Z",
	}

	updated, err := client.Emails.Update(updateParams)
	if err != nil {
		panic(err)
	}

	fmt.Printf("Updated email: %s\n", updated.Id)
}
```

***

## UpdateWithContext

Updates a scheduled email with the given parameters and context.

```go theme={null}
func (s *EmailsSvcImpl) UpdateWithContext(ctx context.Context, params *UpdateEmailRequest) (*UpdateEmailResponse, error)
```

### Parameters

<ParamField path="ctx" type="context.Context" required>
  Context for the request.
</ParamField>

<ParamField path="params" type="*UpdateEmailRequest" required>
  The update parameters. See [Update](#update) for field details.
</ParamField>

### Returns

<ResponseField name="response" type="*UpdateEmailResponse">
  See [Update](#update) for response field details.
</ResponseField>

### Example

```go theme={null}
package main

import (
	"context"
	"fmt"
	"github.com/resend/resend-go/v3"
)

func main() {
	ctx := context.Background()
	client := resend.NewClient("re_123456789")

	// First, schedule an email
	sendParams := &resend.SendEmailRequest{
		From:        "onboarding@resend.dev",
		To:          []string{"delivered@resend.dev"},
		Subject:     "Scheduled Email",
		Text:        "This email will be sent later",
		ScheduledAt: "2024-09-05T11:52:01.858Z",
	}

	sent, err := client.Emails.SendWithContext(ctx, sendParams)
	if err != nil {
		panic(err)
	}

	// Update the scheduled time
	updateParams := &resend.UpdateEmailRequest{
		Id:          sent.Id,
		ScheduledAt: "2024-11-05T11:52:01.858Z",
	}

	updated, err := client.Emails.UpdateWithContext(ctx, updateParams)
	if err != nil {
		panic(err)
	}

	fmt.Printf("Updated email: %s\n", updated.Id)
}
```