Please guide us

Hi
We used to do this but we paused it and went onto Google adwords instead.

I’ve created the campaign (Shopping ads May 25 (paused)) but I cannot link this to a product feed. There is a list of 15 products in ‘Products’ but I don’t know where its picking up this feed from. I’ve played around for hours now and I can’t seem to make it make sense.

I don’t know what Asset groups are and if this is important, plus I am anxious of being able to control and monitor our spend.

https://prnt.sc/ibrlZqbUNeG6

https://prnt.sc/7107gtveJRNn