How to search tickets by product id and product name?

How to search tickets by product id and product name?

Hi,

In the former version of the API ( https://support.zoho.com/api/json/requests/getrecordsbysearch), it used to be possible to search for tickets by product id or product name (using the searchfield and searchvalue request parameters)

According to the following page: 
https://help.zoho.com/portal/kb/articles/migrating-from-xml-json-apis-to-our-new-rest-apis,

the aforementioned API should map to the API described in:

https://desk.zoho.com/support/APIDocument.do#Search#Search_TicketsSearchAPI

i.e. https://desk.zoho.com/api/v1/tickets/search

However, trying to use this API by passing the productId as a search parameter always fail. For example:

https://desk.zoho.com/api/v1/tickets/search?productId=128390000000856031

results in

{
    "errorCode": "UNPROCESSABLE_ENTITY",
    "message": "The value passed for the 'productId' parameter is invalid."
}

Can you please give examples on how to search by product name and product id using this new API?

Thank you.