https://crm.zoho.com/crm/private/xml/Potentials/getRecords?authtoken=xxxxxxxxxxxxxx&scope=crmapi&selectColumns=Potentials(Potential%20Name,Job%20Code,Stage,Closing%20Date,Amount,Third%20Party%20Costs,Days%20Sold,Days%20Subcontracted,Potential%20Owner,Expected%20Revenue)&newFormat=2&fromIndex=1&toIndex=500

As you can see the only restriction being set is the number of records. I only get 201 returned, so it's no where near the limit.

I'll be happy to provide a feed link including my auth token and details of a missing record direct to a Zoho Tech, just not so keen on posting them on a public forum.