# IS\_UNIQUE\_NAME

### Description

`IS_UNIQUE_NAME` checks whether a given name does not already exist as a valid instance of a specified type on the platform. It returns `true` if the name is unique (i.e. no active instance with that name exists), and `false` otherwise.

This is useful for validation rules that enforce uniqueness of instance names.

### Example

```
p is Person
IS_UNIQUE_NAME('Company', p.company_name)
```

This returns `true` if no active `Company` instance with the name stored in `p.company_name` exists on the platform.


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