The _Contact Profile_ functions are used to manage a user’s [Contact Profile](https://docs.cognigy.com/ai/agents/analyze/contact-profiles). They allow you to activate or deactivate a Contact Profile, update specific fields, and merge one Contact Profile with another. When a Contact Profile is deactivated, no data can be read from or written to it.

## [`activateProfile`](https://docs.cognigy.com/ai/for-developers/function-reference/contact-profiles/activateProfile)

**Syntax:** `activateProfile()` Activates the user’s Contact Profile.
Call this function to re-enable read and write operations on a previously deactivated Contact Profile.

## [`deactivateProfile`](https://docs.cognigy.com/ai/for-developers/function-reference/contact-profiles/deactivateProfile)

**Syntax:** `deactivateProfile(deleteData)` Deactivates the user’s Contact Profile. When the Contact Profile is deactivated, no data can be read from or written to the Contact Profile.

## [`updateProfile`](https://docs.cognigy.com/ai/for-developers/function-reference/contact-profiles/updateProfile)

**Syntax:** `updateProfile(key, value)` Updates a value in the current user’s Contact Profile.

## [`mergeProfile`](https://docs.cognigy.com/ai/for-developers/function-reference/contact-profiles/mergeProfile)

**Syntax:** `mergeProfile(contactId)` Merges the current Contact Profile with another one.