---
title: setAttributes
slug: campaign/docs/setattributes
docTags: 
createdAt: 2026-07-02T19:01:45.097Z
---

:::hint{type="info"}
**Note**
Transactional recipient lists (that is, recipient lists that can only be used for API calls) cannot be updated using this method.
:::

**Type**: void

**Parameters**

| Name            | Type      | Value                                                                                                                                                                                                                                                                                      |
| --------------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| sessionId       | String    | ID of the session                                                                                                                                                                                                                                                                          |
| recipientListId | long      | ID of the recipient list                                                                                                                                                                                                                                                                   |
| recipientId     | String    | ID of the recipient                                                                                                                                                                                                                                                                        |
| attributeNames  | String\[] | Field names of the fields (e.g., firstname, lastname etc.) that are to be updated                                                                                                                                                                                                          |
| attributeValues | String\[] | New values for the attributes/fields defined with **attributeNames**<br /><br />Each entry must be formatted according to the [formatting rules](https://world.optimizely.com/documentation/developer-guides/campaign/SOAP-API/introduction-to-the-soap-api/soap-1-1-compatibility/#Type). |

**Return values**

- **Code structure**

```java
void setAttributes(String sessionId, long recipientListId, String recipientId, String[] attributeNames, String[] attributeValues)
```