ZipTip puts a postal-code checker on your product and cart pages so out-of-zone customers find out before they reach checkout — no more refunding orders you can't fulfil. Define delivery zones with prefixes, ETA, surcharge, cutoff times, and blackout dates manually or via CSV (up to 10K rows). Capture out-of-zone emails as a waitlist; optionally tag them as Shopify Customers for your email tools. Works with any country's postal code format and runs fully client-side, so it doesn't slow down your

• Postal-code checker on product & cart pages with ETA and surcharge
• Zone editor: prefixes, cutoff times, blackout dates, CSV import (10K rows)
• Out-of-zone waitlist with postal-area demand summary
• Optional auto-tagging of waitlist customers in Shopify
• Theme app block — drop into any Online Store 2.0 theme, no code edits