Something wrong with Get Records by Search

Something wrong with Get Records by Search

Hi

I'm developing an App for my company. I'm using the ZOHO Support API. I think there is something wrong with method: getrecordsbysearch

I'm trying to recover some records by searching by email or subject. But I'm getting the following error:

{"response": {"uri":"/api/json/requests/getrecordsbysearch","error": {"code":4832,"message":"There is no data to show"}}}

But I know there is data to show since I see it in the front end. What can be wrong? Here the request I send to the server:

https://support.zoho.com/api/json/requests/getrecordsbysearch?authtoken=[my_auth]&portal=[my_portal]&department=[my_department]&searchfield=Subject&searchvalue=please

where [my_auth], [my_portal], [mydepartment] is the correct token (I use it for method getrecords which is working fine).

Please give me advice on this.

Thanks,