{"section":"known-issues","requestedLocale":"en","requestedSlug":"pasting-postal-code-in-shipping-preview-cart-sometimes-returns-null-api-result","locale":"en","slug":"pasting-postal-code-in-shipping-preview-cart-sometimes-returns-null-api-result","path":"docs/en/known-issues/Checkout/pasting-postal-code-in-shipping-preview-cart-sometimes-returns-null-api-result.md","branch":"main","content":"## Summary\n\n\nAfter entering the postal code once in the shipping preview and choosing to paste it again, it sometimes occurs to make a null request to the zip code API.\n\nThe request is `/api/checkout/pub/postal-code/null/postalcodenumber` and returns a 500 error.\n\n\n##\n\n## Simulation\n\n\n\n- Go to the cart and add a postal code;\n- Click to change it and paste another postal code (or even the same);\n- Go to the shipping step, and the address may be incomplete.\n\n\n##\n\n## Workaround\n\n\nThe user will need to click the \"Calculate\" button or hit the enter key, in some cases typing the postal code without inserting it."}