---
title: Targeting options
---

You can now easily tailor the way you serve your ads to fit a specific audience!  
You’ll need to inform our servers of the users’ details so the SDK will know to serve ads according
to the segment the user belongs to.

### User ID
The userID is a unique identifier supplied by your application and must be static for each user across sessions.

<CodeGroup synchronize={true}>
```kotlin
CAS.targetingOptions.userID = "user-hash-code"
```

```java
CAS.getTargetingOptions().setUserID("user-hash-code");
```
</CodeGroup>

<Warning>  
Your userID should not contain any personally identifiable information such as  an email address, screen name, Android ID (AID), or Google Advertising ID (GAID).
</Warning>

### User Age

Set user age. Limitation: 1-99. By default 0 is 'unknown'.

<CodeGroup synchronize={true}>
```kotlin
CAS.targetingOptions.age = 12
```

```java
CAS.getTargetingOptions().setAge(12);
```
</CodeGroup>

### User Gender

Set targeting to user’s gender. Limitation: `GENDER_UNKNOWN, GENDER_MALE, GENDER_FEMALE`.

<CodeGroup synchronize={true}>
```kotlin
CAS.targetingOptions.gender = TargetingOptions.GENDER_MALE
```

```java
CAS.getTargetingOptions().setGender(TargetingOptions.GENDER_MALE);
```
</CodeGroup>

### User Location

Set the user's current location. Location data is not used to CAS; however, it may be used by third party ad networks.

<CodeGroup synchronize={true}>
```kotlin
CAS.targetingOptions.location = userLocation
```

```java
CAS.getTargetingOptions().setLocation(userLocation);
```
</CodeGroup>

<Warning>  
Do not use Location just for advertising. Your app should have a valid use case for it as well.
</Warning>

### User Location auto collection

Collect from the device the latitude and longitude coordinated truncated to the hundredths decimal place.

* Collect only if your application already has the relevant end-user permissions.
- Does not collect if the target audience is children.
- Disabled by default.

<CodeGroup synchronize={true}>
```kotlin
CAS.targetingOptions.locationCollectionEnabled = true
```

```java
CAS.getTargetingOptions().setLocationCollectionEnabled(true);
```
</CodeGroup>

### App Keywords

Set a list of keywords, interests, or intents related to your application. Words or phrases describe
the current activity of the user for targeting purposes.

<CodeGroup synchronize={true}>
```kotlin
CAS.targetingOptions.keywords = setOf("sports", "football", "fitness")
```

```java
CAS.getTargetingOptions().setKeywords(
    new java.util.HashSet<>(java.util.Arrays.asList("sports", "football", "fitness"))
);
```
</CodeGroup>

### App Content URL

Set the content URL for a website whose content matches the app's primary content. This website content is used for targeting and brand safety purposes. Limitation: max URL length 512.

<CodeGroup synchronize={true}>
```kotlin
CAS.targetingOptions.contentUrl = contentUrl
```

```java
CAS.getTargetingOptions().setContentUrl(contentUrl);
```
</CodeGroup>