# Relink Card Contract to Another Client
source: https://developer.mastercard.com/mastercard-processing-core/documentation/sandbox-testing/data-management/relink-card-con-to-another-client/index.md

## Test case -- Success {#test-case--success}

This test case describes relinking a specified card contract to a different client in the CMS.

**Sample request**

`PUT /cards/70001/client-identifier`

```JSON
{
  "clientId": 40000
}
```

**Sample response**

`204`