@AlyssaCoelho -
On the Gravity Forms side, you can use a filter to “only continue if,” or paths to assign different tags based on which coupon code is used.
In the Buildfire app, the Business plan gives you access to their API, which facilitates the use of Zapier actions:
Now imagine being able to integrate with all of those services in your app. Well, we have some great news! You can now do this with our integration with Zapier! With our Business level plan, you can gain access to our BuildFire Gateway API which allows you to link your app with the other services in Zapier. With a couple of clicks you can unlock a whole new world of connectivity between your app and your other systems which can help ease and improve the process of managing multiple systems and services.