OpenIntegrations/docs/en/examples/Bitrix24/UpdateTask.txt

    // The complete structure of the fields can be obtained by the GetTaskFieldsStructure() function()

    TaskData = New Structure;
    TaskData.Insert("TITLE"      , "Another task title");
    TaskData.Insert("DESCRIPTION", "Another task description");
    TaskData.Insert("PRIORITY"   , "1");

    URL    = FunctionParameters["Bitrix24_URL"];
    TaskID = FunctionParameters["Bitrix24_HookTaskID"];

    Result = OPI_Bitrix24.UpdateTask(URL, TaskID, TaskData);

    URL    = FunctionParameters["Bitrix24_Domain"];
    Token  = FunctionParameters["Bitrix24_Token"];
    TaskID = FunctionParameters["Bitrix24_TaskID"];

    Result = OPI_Bitrix24.UpdateTask(URL, TaskID, TaskData, Token);