Custom Collector task object in formatted JSON:
{
    "Task_UID": "c7c6ffb9bae54df1b662fffb72964c77",
    "Agent_UID": "a06c2dd16de44abea9fad13625c39351",
    "PerformanceCounterPath": "..\\SamCat III\\e-010\\CPU-X",
    "Aggregate": "Average",
    "MaxThreshold": 0,
    "MinThreshold": 0,
    "IgnoreErrors": "NO",
    "Device_Id": 7647,
    "Id": 16532,
    "Task_Type_Id": 65,
    "Name": "..\\SamCat III\\e-010\\CPU-X"
}

Fields description 

Field Type Description
Task_UID

String

Unique Task ID used by API to distribute gathered monitoring results.

Example:
"Task_UID": "c7c6ffb9bae54df1b662fffb72964c77"
Agent_UID

String

 Collector UID. Messages containing any statistical value (statistical data should be presented in in numerical terms the floating-point) are received by  “Custom Collector” and then “distributed” to underlying Tasks.

Each Collector has  unique UID. This UID is used afterwards to address counter’ data flow to the exact collector using MetricsView API interface. UID Can be regereated at Collector’s Edit page ( “Downloads” –> “Metricsview” –> “Edit” button) 
Example:
"Agent_UID": "a06c2dd16de44abea9fad13625c39351"
PerformanceCounterPath

String

 Descriptive field. It describes monitored object at client side. Value of this field interconnected with underlying fields “Host”, “Category”, “Instance” and “Counter”

Example:
"PerformanceCounterPath": "..\\SamCat III\\e-010\\CPU-X"
Aggregate

String

All received data will be aggregated on a regular basis, according to the adjusted device frequency.

  • Maximum – the highest value from array will be taken
  • Average – value is calculated as an average of all intermediate values
  • Minimum – the lowest value from array will be taken
Example:
"Aggregate": "Minimum"
MaxThreshold

int32

Threshold. Exceeding will result alerting

Example:
"MaxThreshold": 0
MinThreshold

in32

Threshold. Exceeding will result alerting

Example:
"MinThreshold": 0
IgnoreErrors

String

 NOT SUPPORTED UNDER CUSTOM COLLECTOR
Device_Id

int32

READ ONLY Field.Unique device id

Example:
"Device_Id": 7647
Id int32

READ ONLY Field.Unique task id

Example:
"Id": 16532
Task_Type_Id int32

Type of the task field. Please check Potential values for “Task_type_id” in appropriate table

Example:
"Task_Type_Id": 65
Name

String

Task name

Example:
"Name": "anynameyouwant"