Refreshes the cached count of subscribers for a segment.
JSON Request Example:
"json_request" element
| Field Name | Description |
| username | Username used to login to Pinpointe |
| usertoken | Unique token assigned to Pinpointe account |
| requesttype | Segments |
| requestmethod | Delete Segments |
"details" element
| Field Name | Description |
| segments | Segment ID |
Successful Response:

"response" element
| Field Name | Description |
| status | Will return SUCCESS if segment is found for the user name supplied |
"response"
"data"
"item" element - One will be returned for each segment
| Field Name | Description |
| deleted | Number of segments deleted |
| segmentids | Segment IDs deleted successfully |
| failed | Number of segments not able to be deleted |
| failedids | Segment IDs for segments not able to be deleted |
Unsuccessful Response:
"response" element
| Field Name | Description |
| status | Will return FAILED when unsuccessful |
| errormessage | Text explaining why request failed |