This API is used to Pin Client (Pins are displayed on Quick View Staff Dashboard)
Please check example usage of Vision Helpdesk API
Operation : add_pinup
Module : client
$postfields["vis_module"] = "client";
// This is the module under which you wish to perform operation
$postfields["vis_operation"] = "add_pinup";
// This is the operation field
$postfields["vis_client_id"] = 1;
// This is client id for which you wish to pin
Below is example API usage for Pin Client
http://visiononlinedemo.com/support/api/index.php? &vis_txtusername=admin &vis_txtuserpass=21232f297a57a5a743894a0e4a801fc3 &vis_module=client &vis_operation=add_pinup &vis_client_id=2
OR use "access token" to Pin Client
http://visiononlinedemo.com/support/api/index.php? vis_txttoken=WXprMk1UY3dZV1V6WWpZeU16RmpOelF3TVdReE5UWTJOVGMyTm1VeU4yUT0= &vis_module=client &vis_operation=add_pinup &vis_client_id=2