---
title: setContent
slug: campaign/docs/setcontent
docTags: 
createdAt: 2026-07-02T19:01:46.338Z
---

**Type**: void

**Parameters**

| Name         | Type     | Value                                      |
| ------------ | -------- | ------------------------------------------ |
| sessionId    | String   | ID of the session                          |
| attachmentId | long     | ID of the attachment                       |
| content      | byte\[ ] | Content of the attachment (in binary form) |

**Return values**

- **Code structure**

```javascript
void setContent(String sessionId, long attachmentId, byte[] content)
```