Automatically Remove a Tag when Product Published on a Particular Channel?

[tanya12]

We sell products online and on Shopify POS, and sometimes some of our products are available to POS only and not our website. I want to automatically add a tag to all products that are created as excluded from our online store, and automatically remove that tag once the product is published on online store.

I'm trying to do this so I can exclude items that are only sold in-store from email marketing.

Does anyone know what trigger I would use for Sales Channel in Shopify flow? I've tried using the "product status updated" trigger and am searching through the conditions, but can't seem to find one for Sales Channel. Is there any alternate name for Sales Channel it might be listed under?

Thank you for your help! 

[paul_n]

There isn't yet a trigger for when something in published/unpublished