---
schema_version: "1"
id: 0b6473bef7e77dfd66fc50d992ce68d31c307b4ab87eacb5ffb1fa7d9351296c
title: uuid
collection: mulesoft
version: current
locale: en-us
portal_url: https://docs.salesforce.com/mulesoft/current/en-us/dataweave/latest/dw-core-functions-uuid.md
canonical_url: https://docs.mulesoft.com/dataweave/latest/dw-core-functions-uuid
source_site: docs.mulesoft.com
content_type: documentation
content_hash: fef5b6b61edfd9c7f60caba1161a22397347d29aac39efd8af5683103c82445f
description: MuleSoft Documentation Site
release: "2.13"
latest: true
---
---
product: DataWeave
version: 2.13
is-latest-version: true
---

# uuid

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

## uuid(): String

Returns a v4 UUID using random numbers as the source.

### Example

This example generates a random v4 UUID.

#### Source

```DataWeave
%dw 2.0
output application/json
---
uuid()
```

#### Output

```JSON
"7cc64d24-f2ad-4d43-8893-fa24a0789a99"
```