---
schema_version: "1"
id: 42b30879ed70152cd0c39581b436191c14d7d0b0ab26158239042ed6c79a570f
title: Join Activity Format
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud/guides/mc-apis/join.md
canonical_url: https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/join.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: eb7500993abb7cbc0bec658500db99b63f0f60631183bb8a95550d3445ff4ccf
products:
  - Marketing Cloud Engagement APIs and Programmatic Languages
  - Marketing Cloud
---
# Join Activity Format

Joins are a convention of outcomes, but are represented in the journey as activities to make them easier to edit. Multiple outcomes with the same `next` value, pointing to the same activity, constitutes a join. Joins are used by marketers to to easily join branches back together. This activity type can’t be used in a custom activity.

## [](#journey-specification-format)Journey Specification Format

The activity must be formatted as specified below. The following JSON object is included in the `activities` array of a journey, as defined in the Journey Specification.

## Sample Request

```js
{
    "key": "Wait4",
    "type": "Wait",
    "configurationArguments": {
        "waitDuration": 2,
        "waitUnit": "DAYS"
    },
    "outcomes": [
        {
            "next": "Email6"
        }
    ]
},
{
    "key": "Email5",
    "type": "EMAILV2",
    "outcomes": [
        {
            "next": "Email6"
        }
    ]
}
```

## Sample Response

```js
{
    "key": "Wait4",
    "type": "Wait",
    "configurationArguments": {
        "waitDuration": 2,
        "waitUnit": "DAYS"
    },
    "outcomes": [
        {
            "next": "Email6"
        }
    ]
},
{
    "key": "Email5",
    "type": "EMAILV2",
    "outcomes": [
        {
            "next": "Email6"
        }
    ]
}
```

## Related Items

[Journey Specification](https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/getting-started-spec.md)