---
title: Configuring subscribes and unsubscribes
slug: campaign/docs/configuring-subscribes-and-unsubscribes
docTags: 
createdAt: 2026-07-20T15:45:00.344Z
---

:::hint{type="info"}
**Note**

This topic is for administrators and developers with administration access rights in Spryker.
:::

This topic describes how to configure the newsletter subscription and unsubscription feature, if you are using Spryker as an e-commerce platform with Optimizely Campaign. Learn which data fields are to be transmitted to Optimizely Campaign and how to reference the unsubscribe link in your newsletter to your Spryker e-commerce platform.

## Transmitting registration data to Optimizely Campaign

The registration data is transmitted via HTTP request to Optimizely Campaign. The following data fields are transmitted:

| Field name             | Data type | Description                                                | Mandatory field               |
| ---------------------- | --------- | ---------------------------------------------------------- | ----------------------------- |
| email                  | String    | Recipient's email address – also the recipient's unique ID | ✓                             |
| salutation             | String    | Title (Mr/Ms) of the recipient                             | ✘                             |
| firstname              | String    | Recipient's first name                                     | ✘                             |
| lastname               | String    | Recipient's last name                                      | ✘                             |
| customer\_shop\_locale | String    | Language of the shop via which the customer has registered | ✓ (transferred automatically) |
| spryker\_id            | String    | Spryker-internal shop customer ID                          | ✘                             |
| customer\_shop\_url    | String    | Shop URL of the customer                                   | ✓ (transferred automatically) |
| customer\_login\_url   | String    | Login URL of the customer                                  | ✓ (transferred automatically) |
| subscriber\_key        | String    | Individual key of user in Spryker Commerce                 | ✓ (transferred automatically) |

## Referencing the unsubscribe link to Spryker

Recipients of a commercial mailing must have the possibility to unsubscribe, see [Deliverability best practices](docId\:YGM2UPli_WVyiQkluoxnT). Usually this is guaranteed by an unsubscribe link located in the footer of the newsletter. To redirect the unsubscribe link to Spryker, adjust the field function in the unsubscribe link.

:::hint{type="info"}
**Note**

This example refers to a message template. You must change the unsubscribe link in all mailings that have already been created but not yet sent.
:::

1. Open the Optimizely Campaign[ menu](docId\:PmNPgvNucBrAG5Rw8f41f) select **Campaigns** > **Message Templates**.
2. Select the message template you want to edit, and click **Edit**.
3. In the **Edit message template** window, in the left **Edit** area, click the name of the paragraph that contains the unsubscribe link.
4. In the right **Content** area, in the **Text** field, click **Source** ![](https://api.archbee.com/api/optimize/BrbvVORKJ5iIeSMZye5kI/1nmijf7BCf9mGzUfsU39J-20260720-145358.png).
5. Replace the unsubscribe link with the following code: `{Unsubscribe Link}?Subscriber_key={subscriber_key}`

   ![Image: Replacing the unsubscribe link](https://api.archbee.com/api/optimize/BrbvVORKJ5iIeSMZye5kI/6X_0apEl_HTDh2yhbrFtG-20260720-145358.png "Image: Replacing the unsubscribe link")
6. Click **Apply** > **Close** > **Save and close**.