Why isn't the correct pincode being verified at checkout?

Payments + Shipping & Fulfilment
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Topic summary

Issue: Checkout address validation accepts mismatched pincodes (postal codes) without errors.

  • Observed behavior: The system processes addresses even when the pincode does not belong to the selected district.
  • Example: For the district Karur, the expected pincode is stated as “6 39002,” but the checkout accepts a different district’s pincode “636701.”
  • Expected behavior: The checkout should verify that the entered pincode matches the selected district and flag incorrect combinations.
  • Impact: Risk of incorrect shipping address validation, potentially leading to delivery issues.
  • Attachment: A screenshot is provided (image appears central to illustrating the checkout behavior).

Request: Guidance or a fix to enforce correct pincode–district validation at checkout.

Status: No solution provided yet; awaiting recommendations or next steps.

Summarized with AI on January 9. AI used: gpt-5.
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In the checkout page the address is getting accepted without any error even if the pincode of the district is entered wrong. For Instance for the district karur the pincode is supposed to be 639002 but it’s accepting other district pincode 636701.

Please provide a solution to get this corrected.

Thanks

Divya

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