A Zalo Official Account (Zalo OA) is a business account on Zalo, Vietnam's leading messaging app, used to talk with customers, send updates and handle support. With Zalo reporting 78.3 million monthly active users, a Zalo OA is often where Vietnamese customers expect to reach a business.
By Trux Nguyen, Founder and Director of Unitrux, with 5 years in marketing and SEO. Published 25 October 2026. Last updated 25 October 2026.
Why Zalo matters
DataReportal estimates that 91.4% of Vietnam's internet users also use Zalo, and VNG, Zalo's parent company, reported 78.3 million monthly active users. For many Vietnamese customers, messaging a business on Zalo feels more natural than email or a web form.
Where a Zalo OA fits
| Channel | Role |
|---|---|
| Google (SEO and Ads) | Being found when customers search |
| Facebook and TikTok | Awareness and social proof |
| Zalo OA | Conversations, follow-up and support |
| Website | Detail, trust and conversion |
Demand
In Google Keyword Planner (all locations, retrieved 25 October 2026), "zalo official account" shows 1,000 to 10,000 monthly searches with Low advertiser competition, and "zalo marketing" shows 100 to 1,000.
Our expert view
Foreign brands often build an excellent website and then route Vietnamese enquiries to an English email address. We recommend making the Zalo conversation part of the customer journey from day one, staffed in Vietnamese. See digital marketing in Vietnam.
Related reading
- Zalo Ads
- Digital Marketing in Vietnam
- Social Media in Vietnam
- Coc Coc and SEO in Vietnam
- Content Marketing in Vietnam
- Facebook Ads in Vietnam
- All Vietnam market guides
About the author
Trux Nguyen is the Founder and Director of Unitrux, with 5 years of experience in marketing and SEO. Areas of work: SEO, AEO, GEO and AIO, local SEO, content strategy, schema markup, keyword research, Google Ads and analytics. Contact: [email protected].
Frequently asked questions
Can a foreign company open a Zalo OA?
Requirements are set by Zalo and can change; we check the current rules for your entity type.
Is Zalo used for B2B?
Yes, widely, for both consumer and business conversations.
Should Zalo replace a website?
No. The website builds trust and visibility; Zalo handles conversations.
Limits and honest expectations
Search engines, marketplaces and social platforms change their answers over time and no one controls them. Results vary by industry, city and competition, and we do not guarantee a position, a mention or a number of leads. We report what is measurable, plainly.
Sources
- DataReportal, Digital 2026: Vietnam: https://datareportal.com/reports/digital-2026-vietnam
- Google Ads Keyword Planner, volume ranges and bid estimates for the keywords named in this article, retrieved 25 October 2026.
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