Check if a client exists in SupportPal

Use this method to check if a client exists in SupportPal. The third-party solution for providing help desk services, [SupportPal](https://www.supportpal.com/), enables you to manage tickets submitted by clients via the Trader's Room.

curl -X GET "https://example.com/api/v2/my/support/user/ensure-exists"

{  "error": {    "message": "Bad Request",    "details": [      {        "issue": "The selected value is invalid.",        "field": "parameter"      }    ]  }}

{  "error": {    "message": "Unauthorized"  }}