Zalo has strict anti-spam policies. You cannot scrape phone numbers and upload them. If users mark your messages as spam, your OA will be banned permanently.
Unlike official Zalo Official Account (OA) marketing—where users must follow a brand to receive messages, or the brand must pay to send "Broadcast Messages" to consenting followers—Zalo Blast operates without user consent. It functions similarly to "SMS blasting" but utilizes internet data instead of cellular networks, making it significantly cheaper for the sender. zalo blast
Zalo Blast software often originates from unverified third-party sources. Using these tools poses a cybersecurity risk, as the software may contain malware designed to steal the sender's own data or customer database. Zalo has strict anti-spam policies
Download the Zalo Business app today and set up your free OA. Your Vietnamese customers are waiting. Using these tools poses a cybersecurity risk, as
