I'm migrating the data-mining part of an Enterprise Intelligence app from API V1 to API V2.

I got everything from OAuth to user-mapping sorted out. What I need in data-mining is to get a list of Leads (and some other modules) a user has created/modified during a given date.

I could successfully make the following query:

https://www.zohoapis.com/crm/v2/Leads/search?criteria=((Created_By:equals:XXXXX0000XXXX))

But, when I make these queries I'm getting the following error:

{"code": "INVALID_QUERY", "details": {}, "message": "invalid query formed", "status": "error"}

Can someone please guide me on what's wrong here or how to make this request right.