How can I separate B2B sales data from Google Analytics reports?

Hi there

I have a two prong question here:

We currently have 3 sales channels on our Shopify: Online, Wholesale and POS. The wholesale is currently being used on our main store for a number of (wrong) reasons. One of the issues having our b2b sales on our store, is that it interferes with our everyday reporting in Google - large orders are being placed which skew our data.

Is there a way to remove the B2B sales from Google/ not let it flow through to GA?

The second part of this question, is if we set up a B2B channel, what does that look like in GA? does it flow through? do I need to set up a new GA4 account for the B2b?

Hope you can help!