What are the most common reasons a domain transfer fails?

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Accepted Answer

The most frequent causes for a domain transfer not completing: wrong or expired transfer code — request a new one from the current registrar (or from the RoTLD portal, for .ro domains); an active transfer lock — most registrars enable a protection against unauthorized transfers by default; it must be disabled at the current registrar before starting the transfer; the domain was recently registered or transferred — many registries enforce a minimum period (usually 60 days) since registration or the last transfer before allowing a new one; mismatched holder details — if the details entered when starting the transfer don't match WHOIS, the transfer can be rejected; unpaid transfer invoice — for extensions where a transfer involves a fee, the order stays pending until it's paid; no confirmation from the holder — if the transfer confirmation email isn't approved within the deadline set by the registry, the transfer expires automatically.