Excluding items based on product tags: I have a tag with two words... how do I write it exactly?

Just add the tag in our Return-Settings exactly as you have added it to the product in your Shopify store.
Example product tag: Summer Collection
Use the exact same Summer Collection writing in our dashboard. Both words on the same line. If you have another product tag (e.g. Blackfriday) , the next one goes on the next line, etc.
See the mentioned example below as you would add it to our dashboard: