How does language targeting work for regional dialects like Brazilian Portuguese or Latin American Spanish?

Language targeting is based on the language setting of the end-user’s device, not on their geographical location. Pushwoosh stores the device language in the Language tag as a lowercase two-letter ISO-639-1 code (pt for Portuguese, es for Spanish).

The Language tag on its own does not differentiate regional variants of a language:

• A message targeted at Portuguese (pt) reaches every user whose device language is any Portuguese variant, including Portuguese (Brazil).
• A message targeted at Spanish (es) reaches all Spanish-speaking users, both Spanish (Spain) and Spanish (Latin America).

How to target a specific region anyway

Combine the Language tag with the Country tag, which holds an uppercase two-letter ISO 3166-2 code. For example, to reach Portuguese-speaking subscribers located in Brazil:

"conditions": [["Country", "EQ", "BR"], ["Language", "EQ", "pt"]]

The same pair of conditions can be built in the Control Panel under Audience → Segments. Note that Country reflects where the device is, so a Brazilian user travelling abroad will not match — use it for regional campaigns, not for guaranteed dialect matching.