Follow these steps to connect your product to your funnel checkout, enabling access for the purchaser:
To access the product editor area navigate to Build Your Product > Products > Offers > Create Offer. You'll see a list of all your offers:
Check out the article "How to Build and Edit an Offer in Products" with a step-by-step video on creating offers.
Step 1: Click into the Funnel > Edit > Products.
Step 2: Toggle on the Membership Offer and Select the offer in the dropdown.
Step 3: Save to confirm your changes.