---
title: "Test combinations facet"
slug: "test-combinations-facet"
abstract: "Guide to the test combinations facet in xDB Data Migration Tool."
---
# Test combinations facet

<details>
<summary><h2>Format in Sitecore 8.x</h2></summary>

In Sitecore 8.x, settings that store the test combinations a contact has been exposed to are stored in a property on the contact. The name of the property is `TestCombinations`.

The following is an example the `TestCombinations` property on the contact:

```csharp
"TestCombinations" : {
    "Value" : "539031e9-28d9-46de-869c-78414b7c326a=1&ae336ce1-9a3d-4c9d-b529-6cbccffc2911=0-1-0"
}
```

</details>

<details>
<summary><h2>Format in Sitecore 9</h2></summary>

In Sitecore 9, test combinations are associated with a contact through a contact facet:

|     |     |
| --- | --- |
| Facet Name | `TestCombinations` |
| Facet Type | `Sitecore.ContentTesting.Model.xConnect.TestCombinationsData` |

</details>

<details>
<summary><h2>Mapping details</h2></summary>

|     |     |
| --- | --- |
| Mapping definition | MongoDB to xConnect Contact Mappings > MongoDB Test Combinations to xConnect Contact Test Combinations Data Facet |

| Value to write to target object | Property on target object |
| --- | --- |
| `Value` from source object | `TestCombinations` |

</details>