Two new operators for string-based conditions are now available in Shopify Flow: “is any of” and “is not any of”. These operators allow you to check if a string field, like order.billingAddress.firstName, matches or does not match any value in a comma-separated list. For instance, the condition “order.billingAddress.firstName is any of ‘Bob,Michal,mary’” would execute if the first name matches any of these values, while “is not any of” would execute for all other names.
→ Read the full update on changelog.shopify.com