That a check “if EU then 6 digits” would also be wrong. You should allow the user to put whatever they want as the zip code (ofc with some sane limit of max chars).
Read my comment. Where do I imply I will take 6 digits? I wrote: choose country, then enter that country’s postcode in order the other data to be fetched. And I even wrote about a fallback (for the case there is no postcode/address data for that country, so we just allow the user to enter whatever they want).
That a check “if EU then 6 digits” would also be wrong. You should allow the user to put whatever they want as the zip code (ofc with some sane limit of max chars).
Read my comment. Where do I imply I will take 6 digits? I wrote: choose country, then enter that country’s postcode in order the other data to be fetched. And I even wrote about a fallback (for the case there is no postcode/address data for that country, so we just allow the user to enter whatever they want).