# CRM Properties

CRM Properties are stored securely only on the Hackle server and cannot be directly queried through the SDK.

{% hint style="danger" %}
CRM Properties are managed separately and are not deleted or reset even if you call `resetUser()` or `clearAll` in `updateUserProperties`.

If a user withdraws their account, you must call the separately provided function to delete the information.
{% endhint %}

## Phone Number Collection

{% hint style="danger" %}
Phone number collection is not available in the Java/Kotlin SDK.

You can collect and delete phone numbers using the [HTTP API](/en/development-guide/http-api/api-properties.md).
{% endhint %}

## CRM Marketing Subscription Consent

{% hint style="info" %}
For more details about subscription consent states, refer to the [CRM Message Subscription Consent Management documentation](/en/development-guide/sdk/user-identifier/crm-subscription.md).
{% endhint %}

### Subscription Consent Properties

You can subscribe or unsubscribe by message purpose.

Use `HackleSubscriptionOperations.Builder` to configure the consent state for the desired properties, then finalize the update using methods like `updatePushSubscriptions()`.

You can update the consent state per message channel.

{% tabs %}
{% tab title="Kotlin" %}

```kotlin
import io.hackle.sdk.common.subscription.HackleSubscriptionOperations
import io.hackle.sdk.common.subscription.HackleSubscriptionStatus

val user = User.builder(userId)
    .build();

val subscriptions = HackleSubscriptionOperations.builder()
    .marketing(HackleSubscriptionStatus.SUBSCRIBED)   // Promotional message subscription consent
    .information(HackleSubscriptionStatus.SUBSCRIBED) // Informational message subscription consent
    .build()

hackle.app.updatePushSubscriptions(subscriptions, user)
```

{% endtab %}

{% tab title="Java" %}

```java
import io.hackle.sdk.common.subscription.HackleSubscriptionOperations
import io.hackle.sdk.common.subscription.HackleSubscriptionStatus

User user = User.builder(userId)
    .build();

HackleSubscriptionOperations subscriptions = HackleSubscriptionOperations.builder()
    .marketing(HackleSubscriptionStatus.SUBSCRIBED)   // Promotional message subscription consent
    .information(HackleSubscriptionStatus.SUBSCRIBED) // Informational message subscription consent
    .build()

hackle.app.updatePushSubscriptions(subscriptions, user)
```

{% endtab %}
{% endtabs %}

<table><thead><tr><th width="224.09765625">HackleSubscriptionStatus</th><th>Description</th></tr></thead><tbody><tr><td><code>UNKNOWN</code></td><td>Subscription Consent has not been given or denied (<code>default</code>)</td></tr><tr><td><code>SUBSCRIPTION</code></td><td>Explicitly opted in to receive messages</td></tr><tr><td><code>UNSUBSCRIPTION</code></td><td>Explicitly opted out of receiving messages</td></tr></tbody></table>

### Update Subscription Consent Status

{% tabs %}
{% tab title="Kotlin" %}
**Update Push Subscription Consent Status**

Updates the user's push message subscription consent status.

```kotlin
import io.hackle.sdk.common.subscription.HackleSubscriptionOperations
import io.hackle.sdk.common.subscription.HackleSubscriptionStatus

val user = User.builder(userId)
    .build();

val subscriptions = HackleSubscriptionOperations.builder()
    .marketing(HackleSubscriptionStatus.SUBSCRIBED)
    .information(HackleSubscriptionStatus.SUBSCRIBED)
    .build()

hackle.app.updatePushSubscriptions(subscriptions, user)
```

**Update Kakao Message Subscription Consent Status**

Updates the user's Kakao message subscription consent status.

```kotlin
import io.hackle.sdk.common.subscription.HackleSubscriptionOperations
import io.hackle.sdk.common.subscription.HackleSubscriptionStatus

val user = User.builder(userId)
    .build();

val subscriptions = HackleSubscriptionOperations.builder()
    .marketing(HackleSubscriptionStatus.SUBSCRIBED)
    .information(HackleSubscriptionStatus.SUBSCRIBED)
    .build()

hackle.app.updateKakaoSubscriptions(subscriptions, user)
```

**Update Text Message Subscription Consent Status**

Updates the user's Text Message subscription consent status.

```kotlin
import io.hackle.sdk.common.subscription.HackleSubscriptionOperations
import io.hackle.sdk.common.subscription.HackleSubscriptionStatus

val user = User.builder(userId)
    .build();

val subscriptions = HackleSubscriptionOperations.builder()
    .marketing(HackleSubscriptionStatus.SUBSCRIBED)
    .information(HackleSubscriptionStatus.SUBSCRIBED)
    .build()

hackle.app.updateSmsSubscriptions(subscriptions, user)
```

{% endtab %}

{% tab title="Java" %}
**Update Push Subscription Consent Status**

Updates the user's push message subscription consent status.

```java
import io.hackle.sdk.common.subscription.HackleSubscriptionOperations
import io.hackle.sdk.common.subscription.HackleSubscriptionStatus

User user = User.builder(userId)
    .build();

HackleSubscriptionOperations subscriptions = HackleSubscriptionOperations.builder()
    .marketing(HackleSubscriptionStatus.SUBSCRIBED)
    .information(HackleSubscriptionStatus.SUBSCRIBED)
    .build()

hackle.app.updatePushSubscriptions(subscriptions, user)
```

**Update Kakao Message Subscription Consent Status**

Updates the user's Kakao message subscription consent status.

```java
import io.hackle.sdk.common.subscription.HackleSubscriptionOperations
import io.hackle.sdk.common.subscription.HackleSubscriptionStatus

User user = User.builder(userId)
    .build();

HackleSubscriptionOperations subscriptions = HackleSubscriptionOperations.builder()
    .marketing(HackleSubscriptionStatus.SUBSCRIBED)
    .information(HackleSubscriptionStatus.SUBSCRIBED)
    .build()

hackle.app.updateKakaoSubscriptions(subscriptions, user)
```

**Update Text Message Subscription Consent Status**

Updates the user's Text Message subscription consent status.

```java
import io.hackle.sdk.common.subscription.HackleSubscriptionOperations
import io.hackle.sdk.common.subscription.HackleSubscriptionStatus

User user = User.builder(userId)
    .build();

HackleSubscriptionOperations subscriptions = HackleSubscriptionOperations.builder()
    .marketing(HackleSubscriptionStatus.SUBSCRIBED)
    .information(HackleSubscriptionStatus.SUBSCRIBED)
    .build()

hackle.app.updateSmsSubscriptions(subscriptions, user)
```

{% endtab %}
{% endtabs %}


---

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```
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```

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