Address validation

Address validation is the connection of an address suggestion and validation service (DaData for Russia, Google Places, Loqate for abroad) to checkout. The buyer starts typing an address and picks it from a dropdown of suggestions; the service normalizes the format, fills in the postal code, and flags incomplete or non-existent addresses. The point is fewer input errors, fewer parcels that do not arrive because of a malformed address, and fewer returns and courier callbacks. Importantly and honestly: validation confirms that the address exists and is properly formatted, but not that the buyer entered their own and that someone lives there — a valid but wrong address can still result in delivery problems; it reduces the share of errors but does not remove it entirely. Quality depends on the provider’s database: DaData is strong on Russian addresses (the Russian government address database, FIAS), but new buildings and remote places may lag; abroad, database completeness varies between services. This is a paid external service: a monthly quota and plan apply, and you are billed by usage — at high traffic that is your cost on your account. And about data: an address is personal data, and passing it to an external service has nuances under 152-FZ or GDPR: you may need to notify customers or update your privacy policy — check with a specialist if unsure. If you have few orders or delivery is simple and local, a manual check may be enough, and we will not push it. Picture this: a buyer types a couple of letters of the street — picks a ready address with a postal code from the suggestion, and the order goes to delivery without typos or “a house with no number”. The base price starts from 25,000 ₽; it depends on the service, the number of forms and your platform.

• Buyers enter the address with errors — parcels do not arrive, returns.
• The courier calls back to clarify the address, delivery fails or slips.
• The postal code and address format are filled in haphazardly, breaking the export to services.
• You do not know how to add address suggestions at checkout.

• Connecting a suggestion and validation service (DaData / Google Places and others)
• Address auto-suggestions while typing at checkout
• Format normalization and postal-code filling
• Flagging incomplete and non-existent addresses
• Passing the clean address to the order and delivery services
• Accounting for the service’s request limits and rates
• Accounting for the nuances of passing personal data (152-FZ / GDPR)
• Documentation and (by agreement) support

• Fewer address errors — fewer failed deliveries
• The buyer picks an address from suggestions instead of typing by hand
• The postal code and format are filled in automatically
• A clean address goes to the delivery services without edits

• We clarify the service, the checkout forms and the countries you need
• We connect suggestions, validation and passing of the clean address
• We test on test orders, launch and support the start

• Does it guarantee the address is correct?

  Not 100% — honestly. Validation confirms that the address exists and is properly formatted, but not that the buyer entered their own. A valid but wrong address can still result in delivery problems. It noticeably reduces the share of errors and failed deliveries, but “zero errors” cannot be promised — no service works that way.

• DaData or a foreign service — which to choose?

  It depends on your buyers. DaData is strong on Russian addresses (the FIAS registry) and is usually the best choice for Russia; for foreign addresses people use Google Places, Loqate and the like. Database completeness varies, new buildings and remote places lag in places — we will choose one for your destinations.

• Do we need this?

  If you have many orders and buyers enter addresses themselves — yes, suggestions noticeably reduce failed deliveries. If you have few orders or delivery is simple and local, a manual check is sometimes enough, and then a paid service is excessive. We will honestly assess it for your volume.