OrderLimits by Digital Takeout allows you to set minimum and maximum values on a range of parameters. For example, OrderLimits can limit a product to 'one per order', or set a max. weight per order so you can manage your shipping fees better.

Helium Customer Fields is your one-stop shop to collect and manage customer data. Create unique registration forms for different customer groups, and collect first-party data from customers such as birthday, pet's name, VAT/Tax ID, etc. All customer data is synced with Shopify fields and customer metafields. Personalize forms with rules and variables, or add customer tags automatically based on first-party data. Use our integrations to sync customer data with your business/marketing tools.