Blaze knowledge base article on area restrictions zip codes: https://support.blaze.me/hc/en-us/articles/360040119494-Retail-Setting-up-Your-Online-Store
Treez: There are zip code settings in Treez ecommerce settings, however, they are not available to Tymber through the integration. If you are using Treez POS, you will need to set your zip code area restrictions in Tymber.