Task parameters

  • Input - task parameters which come to the start node of the process
  • Local - internal frequently used parameters for fast and convenient use in logic
  • Output - task parameters, which are the result of a process

Task parameters menu is designed to describe task parameters of the process:

Task parameters interface:

1 - + Add parameter - add empty fields to describe a new parameter

2 - Copy - copy all parameters from the current tab

3 - Paste - paste parameters (this button is inactive while there are no parameters in the clipboard)

4 - copy parameter

5 - delete parameter

6 - Cancel - close window without saving changes

7 - Save - close window with saving changes.

You can also open Task parameters when specifying parameters to the logic. By default, the parameter is added to Local:

Task archive (Table mode) displays already described parameters highlighted. To specify the new ones, click "+" next to the parameter.

The parameter is added to the Local tab, Name and Description fields are filled in, the data type is determined automatically. If necessary, edit the description and click Save.

Describing Parameters

To add a description of the task parameters:

  • click Task parameters
  • select the tab according to the use of the parameter (Input/Local/Output)
  • press button + Add parameter
  • enter parameter Name
  • enter short Description (optional)
  • select data type
  • specify the parameter:

    • Auto-clear - hides parameter value (displays as "*") in Task archive**
    • Required (for Input and Output parameters)
    • RegExp - parameter validation using regular expressions (only for Input parameters)
  • press Save

Parameters pass validation when adding.

Possible errors:

Parameter "<name>" is already exist - duplicate parameter in one of the tabs

Name is empty - Parameter name field is not filled (required)

Invalid parameter name - contains invalid characters.

Parameter Name

Parameter name must be unique for all tabs.

It may contain:

  • big and small Latin letters
  • numbers
  • characters "_", "#", "@", "$", "\", "[", "]", "."

Escaping special characters in parameter name

If parameter name contains characters ".", "[" or "]" you must escape it with a backslash.

For example

phone[0] - element of the array "phone"

phone\[0\] - parameter "phone[0]"

Examples of valid parameter names:

Parameter Type


"name": "John"

Number (integer, float):

"card_number": 123456789,
"bonus": 10.50

Please notice!

The maximum value for type Number - 2ˆ53 = 9 007 199 254 740 992. For large values, you must use String.

Boolean - true or false:

"send_notifications": false,
"subscribed": true


"phones": [

Object - set of "key-value" pairs:

"address": {
        "city": "Odessa",
        "zip_code": 65000

How to use RegExp

Regular expression is a good way to validate parameter value of task parameter in process. It can be validation of text fields such as names, addresses, phone numbers, etc.

Adding the parameter description, select RegExp.


  • Regex for validation of value - regular expression
  • Text of the response in case of error regexp - error text if validation failed

Press Save.

This option is available only for Input parameters.

The parameter is validated by the added regular expression at the input to the process. If validation failed, an error specified in Text of the response in case of error regexp occurs.

Masking Values

Parameters values and task references, which consist of a set of digits and are similar to the format of:

  • bank account / card number
  • CVV code are masked in Task Archive (displayed as "*"). To disable masking values specify process parameters.

To disable masking task references switch off the checkbox Mask REF in Task parameters.

Why describe the task parameters?

Input parameters are substituted to new task automatically.

When adding Call Process, Copy Task, Modify Task logic to the process, the Input parameters of the selected process are automatically substituted.

Output parameters are used to configure the logic Reply to Process:

Also described parameters can be selected in all logics from the dropdown list. The drop-down list is called by clicking on the field to enter a variable. For example, in logic Condition:

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