Need Help with Zapier: Buying LTOs and Newsletter Automation Issues

Any Zapier pros in here I'm trying to create a Zap where when someone buys my LTO it subscribes them to the newsletter but also ads them to an after purchase automation. For the automation I want to add them to a segment of purchased customers so that I can automatically enroll them in the automation instead of waiting for it to dynamically add them. What the heck is subscription ID given that its given me a bunch of random emails along with the things that are showing up as tags aren't the tags I have set up in beehiiv