Curious, for marketing purposes, if there’s a way in Flow to tag every order with the vendor name from the line items. I did see a way to make a flow that tags orders containing specific line items containing a specific vendor. In this instance I’d have to crate a flow for every vendor we have and that’s quite a bit of flows.
I'm not sure if you're still looking for a solution to tagging orders with the vendor of every line item within an order, but our Order Tagger app has the ability to do this.
I know this is outside of Flow, but we do also have a Flow trigger that can tell Flow to start a workflow once we have applied your tags to an order.
We use our Dynamic Tags feature to apply ALL vendors contained within the order to be applied as order tags:
You can also choose whether you'd like to handleize the vendor name, add a tag prefix or add a tag suffix.
Order Tagger also has a backdating feature that allows you to run your rules against all of your old orders, so it could be used to retroactively apply the vendor names to your orders.