Keyword research has to happen in the local language. Buyers in Vietnam, Thailand and Indonesia often search with product terms that differ from the English category name, and a keyword list or ad copy translated from a home-market campaign tends to miss the phrases with real buying intent. Ad copy written for the local buyer, and landing pages that match what the ad promises, decide whether clicks turn into enquiries.
Conversion tracking is now subject to data protection law in all three markets. Consent requirements for tracking and remarketing audiences differ, and in Thailand transfers of personal data abroad raise additional questions. Configuring measurement with those rules in mind from the start produces data that can be trusted, instead of a setup that has to be corrected once a campaign is already spending.
Advertising rules are moving as well. Vietnam tightened its online advertising enforcement in 2026, including faster removal of unlawful online ads and a cap on how long video ads can delay the option to turn them off, and Thailand has published advertiser identity verification requirements for online social media services, taking effect on 1 November 2026, whose application to search advertising still needs confirming. A self-serve setup built from a global checklist can easily miss changes of this kind.
Google’s own requirements apply independently of local law. Advertiser verification tasks in the Google Ads account, ad policies and billing ownership all need attention before launch, and media spend is agreed separately from the service so that budget decisions stay with you.