Lead Import duplicate detetcion not fuctioning

Lead Import duplicate detetcion not fuctioning

Hello Zoho Support:

I have been using Zoho since the beta release and have very good luck with this product (I am paying customer!).

Recently, in the last week or so I realized that the duplicate imort feature (when uploading leads) no longer detects duplicate entries. My staff has been telling me that the we normally see about 2-5 dupes for every 300 leads, but now it has been zero. I even have uploaded the same list 3 times and Zoho completed th eimport without notifying me of duplicates.

Can you help? Please :)