But for businesses, simply having a Zalo account isn't enough. You need to scale your outreach. Enter (officially known as Zalo Official Account - OA ). What is Zalo Blast? Zalo Blast is a bulk messaging feature available to businesses via a Zalo Official Account. Unlike a personal Zalo account (which limits you to 1000 friends and gets flagged for spam if you send too many messages), an OA allows you to send high-volume notifications directly to users who have opted-in to follow your brand.
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. zalo blast
Unlocking Vietnamese Markets: The Ultimate Guide to Zalo Blast But for businesses, simply having a Zalo account