Create a Flow that can categorize or separate products that sells online from ones that doesn't

Hi,

i’m tryng to create a flow to categorize and separate products that we prefer to sell online from the ones that make sells in our physical store.

I know that there are multiple way to do it, for example use auto tags or assign collections to products that sells/doesn’t sells online in 60 days.

another example could be create two different point of sales and if a product doesn’t make a sell in 60 days this one will automatically transfer quantity to another point of sale.

How can be done this kind of automation?

I think the first question - what is different between the products you sell online vs the ones that you sell in the store? If you don’t tag them differently, then maybe you only stock them at certain locations and have an “online” location that fulfills orders?