To use membership, Stripe required to create Stripe products and plans. In houzez there are 2 ways to create plans.
1 - Automatically create Product & Plans
By default Houzez theme will create product and plans automatically if you are using Houzez v2.4.0+
2. Manually create product and plans
If you already has plans or want to create manually then follow this info.
i) Create new product
ii) Copy price API ID
iii) Add API ID for package