MyStoreKitA small workshop building simple, single-purpose Shopify apps. Every app is $5/month with a 7-day free trial.https://mystorekit.app/Catching address typos and PO boxes on Shopify: checkout rules that prevent delivery problemshttps://mystorekit.app/blog/address-validation-po-box/https://mystorekit.app/blog/address-validation-po-box/Address entry mistakes and undeliverable destinations like PO boxes cause failed deliveries and refunds. How to catch them at checkout with validation rules.Fri, 25 Sep 2026 00:00:00 GMTRequiring PO numbers on Shopify B2B orders: setting up company checkout ruleshttps://mystorekit.app/blog/b2b-po-number-rules/https://mystorekit.app/blog/b2b-po-number-rules/How to require PO numbers on B2B orders and keep general buyers out of wholesale pricing, using checkout rules on Shopify.Fri, 25 Sep 2026 00:00:00 GMTHow to add a delivery date picker to the Shopify cart drawerhttps://mystorekit.app/blog/cart-drawer-delivery-date-picker/https://mystorekit.app/blog/cart-drawer-delivery-date-picker/Mobile customers check out from the cart drawer, so a delivery date picker on the cart page is a picker nobody sees. How theme app blocks put it in the drawer, no Liquid edits, nothing left behind.Tue, 29 Sep 2026 00:00:00 GMTHow to add a delivery date picker to Shopify checkouthttps://mystorekit.app/blog/checkout-delivery-date-picker/https://mystorekit.app/blog/checkout-delivery-date-picker/Most Shopify delivery date apps stop at the cart. On Plus, a Checkout UI extension can put the date picker right above the shipping options, the last screen before payment. How it works, and who needs it.Wed, 30 Sep 2026 00:00:00 GMTHow to stop fraudulent Shopify orders: building rules that block them before paymenthttps://mystorekit.app/blog/checkout-fraud-rules/https://mystorekit.app/blog/checkout-fraud-rules/A practical guide to blocking fraudulent, prank, and resale orders at checkout on Shopify. The limits of built-in tools, and how to think about rule-based blocking, written by the app's developer.Sun, 20 Sep 2026 00:00:00 GMTPreventing cash-on-delivery refusals on Shopify: stopping problem orders before paymenthttps://mystorekit.app/blog/cod-rejection-prevention/https://mystorekit.app/blog/cod-rejection-prevention/Refused COD parcels mean lost shipping and a dead sale. How repeat refusal offenders look, and how to stop them at checkout with rules.Fri, 25 Sep 2026 00:00:00 GMTHow to set purchase quantity limits on Shopify: stopping resellers and bulk orders at checkouthttps://mystorekit.app/blog/purchase-quantity-limits/https://mystorekit.app/blog/purchase-quantity-limits/Purchase limits per customer, product, and order: how to use them against resale buying and bulk prank orders, and how to enforce the cap at checkout with rules.Fri, 25 Sep 2026 00:00:00 GMTBlackout dates on Shopify: planning holiday and peak-season deliverieshttps://mystorekit.app/blog/shopify-blackout-dates/https://mystorekit.app/blog/shopify-blackout-dates/Blackout dates block holidays and closed days from your Shopify delivery date picker. How to plan blackout date ranges, delivery days, and lead times for Q4 and beyond.Mon, 28 Sep 2026 00:00:00 GMTHow to add a delivery date picker on Shopify: a setup guidehttps://mystorekit.app/blog/shopify-delivery-date-picker/https://mystorekit.app/blog/shopify-delivery-date-picker/Let customers choose their own delivery date and time slot on the cart, cart drawer, or checkout. A Shopify setup guide: lead times, cutoffs, blackout dates, and time slots.Sat, 26 Sep 2026 00:00:00 GMTShopify order cutoff times and delivery lead times: a practical guidehttps://mystorekit.app/blog/shopify-order-cutoff-time/https://mystorekit.app/blog/shopify-order-cutoff-time/An order cutoff time adds a day to orders placed late, so customers can only pick delivery dates you can actually fulfill. How to set cutoffs, lead time, and delivery days on Shopify.Sun, 27 Sep 2026 00:00:00 GMT