Couriers in Saudi Arabia deliver to the national short address: 4 letters and 4 digits, like RUKN2952. Orders without one get stuck, rebooked or returned. Checkout Toolkit KSA checks every Saudi checkout, including express checkouts, and blocks it until a valid code is in the address line you choose. Lower case, a space inside the code and Arabic digits are accepted. The error appears under the right field, in Arabic or English. Other countries are never affected. Works on every plan.

• Blocks Saudi checkouts without a valid 4-letter, 4-digit short address
• Choose address line 1, line 2 or either; the error shows under that field
• Arabic and English error messages, editable in the app
• Accepts lower case, a space in the code and Arabic digits
• Guided setup with copy-ready checkout labels and an address tester