Some addresses are perfectly deliverable but technically "incorrect" by database standards. The classic case: a customer writes their suburb or district instead of the official city name. AddressHero might then "correct" the postal code to match the city, or vice versa, even though the parcel would have arrived just fine.
For exactly these cases there is the whitelist.
Add the address to your whitelist in the post-checkout settings ("Skip address validation for specific addresses"). From then on:
The customer's input must exactly match the spelling of the whitelisted address. A different spelling or abbreviation is treated as a different address and validated normally.
If you see a whole PATTERN of unwanted corrections (not just one address), read Street normalization and format-only corrections and Why was an address corrected unnecessarily? first, there may be a setting that fixes the category instead of one address.
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