Layover Time Recommended

We fly Delta and its partner KLM a lot and Amsterdam airport is a good airport to transit.
They had some issues a few years ago at the end of the COVID nightmare, but they are good now.
3 hours should be plenty of time to transfer. You can clear customs fairly easy there.

To get some reassurance, check to see what terminal you arriving flight normally uses, as well as the departing flight, to see how complicated the transfer may be.

It should be with the usual reservation ---- if your flight is on time. AND -- I assume that Venice is part of the original ticket. When we have been through Amsterdam, I have noticed that there is always a special line for travelers with short connections. Access appears to be well controlled so you can take advantage of these short lines. You should be fine.

I am also flying Delta and really appreciate your input. Thanks!

I also fly Delta and often transit thru Amsterdam. I agree that your time frame will give you plenty of time. Amsterdam is really geared for transits. IF your inbound flight is running late, when you get to Passport Control there are staff members there who will move you to a separate line if you have a tight connection.

You will go thru Passport Control (movement of people) in Amsterdam which is where you enter the Schengen Zone. You will go thru Customs (movement of goods) in Venice. In general in Europe "going thru Customs" means going thru a green door that is marked "nothing to declare". If you are following the crowd you may be thru the door before you realize it!

Thank you very much for the helpful information regarding passport control and customs.