Is there a way to have a set amount as well as a user defined amount using square?

On my form I have products that have a set amount but I would like to have an user defined open amount Donations field. 

Hopefully that makes sense. From what I see it can be either or not both. 

Hi,

If you have products listed on your form this means you have chosen the "Sell Products" option on Square. Unfortunately, you can not choose both "Sell Products" and "User Defined Amount" so, you need to choose one of them. When you use "User Defined Amount" though, you can set a minimum price, which can be the actual price of your product in your instance, and users can only increase this. 

I hope this helps. 

Please contact us again if you need any further assistance.