Certainly wouldn't call it 'spam' as it doesn't really fall under the category of entirely 'unsolicited', as you are a customer and agreed to get emails from me
I totally agree. Our customers will have confirmed they are willing for us to send them infrequent emails when they created an account, so not sure it would fall under the category of spam. I guess all I wanted was the ability to be able to see who had saved products for later, even if I didn't email them, just to see 1) whether people find the 'save for later' facility useful and 2) have that data available so I can start asking myself some questions as to why they didn't buy those certain products at the time.

Many thanks for your time