Tag between Clickfunnels and Keap

I started with Keap from 2 month.

I need to integrate Clickfunnels, I have APIV2 working.

when a lead buys something, they correctly end up on Clickfunnels.
The company that manages Keap asks me to add a specific tag when the customer buys on clickfunnels but I don’t see that specific tag (which is IFFB - First Order Start Button) in the list of tags on the clickfunnels side. I only see a few of them and I’ll post a screenshot of them. How can I see it via API?

I have also create a webform in Keap (without I was not able to activate API V2) and I also see this one in integration, but not specific tag.