--- title: "Contact Behavior Profile" slug: "contact-behavior-profile" abstract: "Overview of the xConnect Contact Behavior Profile (CBP) calculated facet and how it is calculated." --- # Contact Behavior Profile The Contact Behavior Profile (CBP) calculated facet stores the matched profiles and patterns for a contact and is represented by the `Sitecore.XConnect.Collection.Model.ContactBehaviorProfile` class. From Sitecore 10.1, two approaches for CBP facet behavior are available: - [Using aggregated profile scores](https://doc.sitecore.com/xp/en/developers/103/sitecore-experience-platform/contact-behavior-profile.html#UUID-261c3b36-fa0a-37bc-4636-f80cb1ec4477_section-idm23215924067661 "Using aggregated profile scores") - this approach is enabled by default. - [Using the most recent profile scores](https://doc.sitecore.com/xp/en/developers/103/sitecore-experience-platform/contact-behavior-profile.html#UUID-261c3b36-fa0a-37bc-4636-f80cb1ec4477_section-idm273223707933678 "Using the most recent profile scores") - this approach is obsolete and disabled by default. The following table describes the calculation logic applied to each CBP facet property when a new interaction is saved to xConnect: | Property | Type | Description | | --- | --- | --- | | `SourceInteractionStartDateTime` | `DateTime` | The `StartDateTime` of the interaction that the profile scores came from. | | `Scores` | `Dictionary` | The contact’s most recently matched profiles. The **key** is the `Guid` of the profile definition item, copied from the `Scores` property of the incoming interaction’s `Sitecore.XConnect.Collection.Model.ProfileScores` facet. | The following table describes the `ProfileScore` properties: | Property | Description | | --- | --- | | `MatchedPatternId` | The definition ID of the pattern in the Marketing Control Panel. Set by external component, such as tracking. | | `ProfileDefinitionId` | The definition ID of the profile in the Marketing Control Panel. | | `Score` | The total score of all values for this profile. | | `ScoreCount` | The number of times the profile was scored during a session. | | `Values` | The scored values for the profile keys. The key represents the profile key ID, and the value represents the score. |

Using aggregated profile scores

 The `ContactBehaviorProfile` calculated facet contains the aggregated profile scores from all interactions. The xConnect core model has been extended with the `ChangeProfileScoreEvent` interaction event. This event represents the contact's profiles delta for the currently submitted interaction, which has to be applied to the contacts' profile scores. > [!note] > All the threads that submit interaction events and collect profile score changes must send the `ChangeProfileScoreEvent` event with the profile score deltas. This includes Tracker and Marketing Automation activity. The contact behavior profile handler `AggregatingContactBehaviorProfileHandler` includes the `AggregatingContactBehaviorProfileHandler`, which tracks `ChangeProfileScoreEvent` events from the submitted interaction, applies deltas, applies decay, and executes pattern matches. All the calculations are stored in the contact’s `ContactBehaviorProfile` calculated facet. The `AggregatingContactBehaviorProfileHandler` is configured by default. > [!note] > The `ProfileScores` facet is obsolete and ignored by the `AggregatingContactBehaviorProfileHandler`. ### Contact merge with aggregated profile scores During the contact merge operation, all profile scores from source to target contacts are merged based on the latest `SourceInteractionStartDateTime`. If the source contact contains a score with, for example, Key1, and the target does not, the score is copied to the target. If the source and the target contacts contain a score with the same key and `SourceInteractionStartDateTime` of the source contact is the latest one, the score for the target contact is updated for this key.

Using the most recent profile scores

 > [!note] > From Sitecore 10.1, this CBP approach is obsolete. To use this approach, you must make configuration changes because it is disabled by default. For more information, see [Enable the Contact Behavior Profile with the most recent profile scores](https://doc.sitecore.com/xp/en/developers/103/sitecore-experience-platform/enable-the-contact-behavior-profile-with-the-most-recent-profile-scores.html "Enable the Contact Behavior Profile with the most recent profile scores"). The `Scores` property in the Contact Behavior Profile is replaced each time an interaction with a `ProfileScores` facet is submitted. The dictionaries are not merged. This ensures that the behavior profile does not go stale. For example, if a contact matches the ‘Christmas Shopping’ or ‘Getting Married’ profiles, these profiles are only stored until the contact starts to exhibit different behavior. Each entry of the `ProfileScores` facet describes the `ProfileScore` of matched patterns.

Enabling the Contact Behavior Profile with the most recent profile scores

 The previous obsoleted CBP behavior is still available but requires configuration changes because it is disabled by default. See [Enable the Contact Behavior Profile with the most recent profile scores](https://doc.sitecore.com/xp/en/developers/103/sitecore-experience-platform/enable-the-contact-behavior-profile-with-the-most-recent-profile-scores.html "Enable the Contact Behavior Profile with the most recent profile scores").

Extending the Contact Behavior Profile

 You cannot extend the Contact Behavior Profile. You must [create your own calculated facet](https://doc.sitecore.com/xp/en/developers/103/sitecore-experience-platform/facets.html "Facets").